feat: Automated regeneration of iam v1 client (#1383)

This PR was generated using Autosynth. 🌈


<details><summary>Log from Synthtool</summary>

```
2020-11-04 02:43:37,764 synthtool [DEBUG] > Executing /home/kbuilder/.cache/synthtool/google-api-ruby-client/synth.py.
On branch autosynth-iam-v1
nothing to commit, working tree clean
2020-11-04 02:43:37,794 synthtool [DEBUG] > Running: docker run --rm -v/home/kbuilder/.cache/synthtool/google-api-ruby-client:/workspace -v/var/run/docker.sock:/var/run/docker.sock -w /workspace --entrypoint script/synth.rb gcr.io/cloud-devrel-kokoro-resources/yoshi-ruby/autosynth iam v1
DEBUG:synthtool:Running: docker run --rm -v/home/kbuilder/.cache/synthtool/google-api-ruby-client:/workspace -v/var/run/docker.sock:/var/run/docker.sock -w /workspace --entrypoint script/synth.rb gcr.io/cloud-devrel-kokoro-resources/yoshi-ruby/autosynth iam v1
bundle install
Don't run Bundler as root. Bundler can ask for sudo if it is needed, and
installing your bundle as root will break this application for all non-root
users on this machine.
The dependency jruby-openssl (>= 0) will be unused by any of the platforms Bundler is installing for. Bundler is installing for ruby but the dependency is only for java. To add those platforms to the bundle, run `bundle lock --add-platform java`.
Fetching gem metadata from https://rubygems.org/.........
Fetching gem metadata from https://rubygems.org/.
Resolving dependencies...
Fetching rake 11.3.0
Installing rake 11.3.0
Fetching concurrent-ruby 1.1.7
Installing concurrent-ruby 1.1.7
Fetching i18n 1.8.5
Installing i18n 1.8.5
Fetching minitest 5.14.2
Installing minitest 5.14.2
Fetching thread_safe 0.3.6
Installing thread_safe 0.3.6
Fetching tzinfo 1.2.7
Installing tzinfo 1.2.7
Fetching activesupport 5.0.7.2
Installing activesupport 5.0.7.2
Fetching public_suffix 4.0.6
Installing public_suffix 4.0.6
Fetching addressable 2.7.0
Installing addressable 2.7.0
Fetching ast 2.4.1
Installing ast 2.4.1
Using bundler 2.1.4
Fetching byebug 11.1.3
Installing byebug 11.1.3 with native extensions
Fetching coderay 1.1.3
Installing coderay 1.1.3
Fetching json 2.3.1
Installing json 2.3.1 with native extensions
Fetching docile 1.3.2
Installing docile 1.3.2
Fetching simplecov-html 0.10.2
Installing simplecov-html 0.10.2
Fetching simplecov 0.16.1
Installing simplecov 0.16.1
Using sync 0.5.0
Fetching tins 1.26.0
Installing tins 1.26.0
Fetching term-ansicolor 1.7.1
Installing term-ansicolor 1.7.1
Fetching thor 0.20.3
Installing thor 0.20.3
Fetching coveralls 0.8.23
Installing coveralls 0.8.23
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Installing crack 0.4.4
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Installing declarative 0.0.20
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Installing declarative-option 0.1.0
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Installing diff-lcs 1.4.4
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Installing dotenv 2.7.6
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Installing fakefs 0.20.1
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Installing multipart-post 2.1.1
Fetching ruby2_keywords 0.0.2
Installing ruby2_keywords 0.0.2
Fetching faraday 1.1.0
Installing faraday 1.1.0
Fetching gems 1.2.0
Installing gems 1.2.0
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Installing github-markup 1.7.0
Fetching jwt 2.2.2
Installing jwt 2.2.2
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Installing memoist 0.16.2
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Installing multi_json 1.15.0
Fetching os 0.9.6
Installing os 0.9.6
Fetching signet 0.14.0
Installing signet 0.14.0
Fetching googleauth 0.14.0
Installing googleauth 0.14.0
Fetching httpclient 2.8.3
Installing httpclient 2.8.3
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Installing mini_mime 1.0.2
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Installing uber 0.1.0
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Installing representable 3.0.4
Fetching retriable 3.1.2
Installing retriable 3.1.2
Fetching rexml 3.2.4
Installing rexml 3.2.4
Using google-api-client 0.48.0 from source at `.`
Fetching google-id-token 1.4.2
Installing google-id-token 1.4.2
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Installing hashdiff 1.0.1
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Installing mime-types-data 3.2020.0512
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Installing multi_xml 0.6.0
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Installing httparty 0.18.1
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Installing rspec-support 3.10.0
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Installing rspec 3.10.0
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Installing json_spec 1.1.5
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Installing launchy 2.5.0
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Installing little-plugger 1.1.4
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Installing logging 2.3.0
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Installing method_source 1.0.0
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Installing rubocop 0.49.1
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Installing webmock 2.3.2
Bundle complete! 31 Gemfile dependencies, 78 gems now installed.
Use `bundle info [gemname]` to see where a bundled gem is installed.
Post-install message from i18n:

HEADS UP! i18n 1.1 changed fallbacks to exclude default locale.
But that may break your application.

If you are upgrading your Rails application from an older version of Rails:

Please check your Rails app for 'config.i18n.fallbacks = true'.
If you're using I18n (>= 1.1.0) and Rails (< 5.2.2), this should be
'config.i18n.fallbacks = [I18n.default_locale]'.
If not, fallbacks will be broken in your app by I18n 1.1.x.

If you are starting a NEW Rails application, you can ignore this notice.

For more info see:
https://github.com/svenfuchs/i18n/releases/tag/v1.1.0

Post-install message from httparty:
When you HTTParty, you must party hard!
echo a | bundle exec bin/generate-api gen generated --api=iam.v1 --names-out=/workspace/api_names_out.yaml
Loading iam, version v1 from https://raw.githubusercontent.com/googleapis/discovery-artifact-manager/master/discoveries/iam.v1.json
    conflict  google/apis/iam_v1.rb
<gle/apis/iam_v1.rb? (enter "h" for help) [Ynaqdhm] a
       force  google/apis/iam_v1.rb
    conflict  google/apis/iam_v1/service.rb
       force  google/apis/iam_v1/service.rb
    conflict  google/apis/iam_v1/classes.rb
       force  google/apis/iam_v1/classes.rb
    conflict  google/apis/iam_v1/representations.rb
       force  google/apis/iam_v1/representations.rb
   identical  /workspace/api_names_out.yaml
2020-11-04 02:44:04,158 synthtool [DEBUG] > Wrote metadata to generated/google/apis/iam_v1/synth.metadata.
DEBUG:synthtool:Wrote metadata to generated/google/apis/iam_v1/synth.metadata.

```
</details>

Full log will be available here:
https://source.cloud.google.com/results/invocations/b5d2262d-0ae3-42e1-8d64-59b3f6dd1c2f/targets

- [ ] To automatically regenerate this PR, check this box.

generated/google/apis/iam_v1.rb

@@ -27,7 +27,7 @@ module Apis
     # @see https://cloud.google.com/iam/
     module IamV1
       VERSION = 'V1'
-      REVISION = '20201022'
+      REVISION = '20201029'
 
       # View and manage your data across Google Cloud Platform services
       AUTH_CLOUD_PLATFORM = 'https://www.googleapis.com/auth/cloud-platform'

generated/google/apis/iam_v1/classes.rb

@@ -159,12 +159,6 @@ def update!(**args)
       class Binding
         include Google::Apis::Core::Hashable
 
-        # A client-specified ID for this binding. Expected to be globally unique to
-        # support the internal bindings-by-ID API.
-        # Corresponds to the JSON property `bindingId`
-        # @return [String]
-        attr_accessor :binding_id
-
         # Represents a textual expression in the Common Expression Language (CEL) syntax.
         # CEL is a C-like expression language. The syntax and semantics of CEL are
         # documented at https://github.com/google/cel-spec. Example (Comparison): title:
@@ -226,7 +220,6 @@ def initialize(**args)
 
         # Update properties of this object
         def update!(**args)
-          @binding_id = args[:binding_id] if args.key?(:binding_id)
           @condition = args[:condition] if args.key?(:condition)
           @members = args[:members] if args.key?(:members)
           @role = args[:role] if args.key?(:role)
@@ -1230,10 +1223,14 @@ def update!(**args)
       # these key-pairs, and Google retains ONLY the public key. System-managed keys
       # are automatically rotated by Google, and are used for signing for a maximum of
       # two weeks. The rotation process is probabilistic, and usage of the new key
-      # will gradually ramp up and down over the key's lifetime. We recommend caching
-      # the public key set for a service account for no more than 24 hours to ensure
-      # you have access to the latest keys. Public keys for all service accounts are
-      # also published at the OAuth2 Service Account API.
+      # will gradually ramp up and down over the key's lifetime. If you cache the
+      # public key set for a service account, we recommend that you update the cache
+      # every 15 minutes. User-managed keys can be added and removed at any time, so
+      # it is important to update the cache frequently. For Google-managed keys,
+      # Google will publish a key at least 6 hours before it is first used for signing
+      # and will keep publishing it for at least 6 hours after it was last used for
+      # signing. Public keys for all service accounts are also published at the OAuth2
+      # Service Account API.
       class ServiceAccountKey
         include Google::Apis::Core::Hashable
 

generated/google/apis/iam_v1/representations.rb

@@ -335,7 +335,6 @@ class Representation < Google::Apis::Core::JsonRepresentation
       class Binding
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
-          property :binding_id, as: 'bindingId'
           property :condition, as: 'condition', class: Google::Apis::IamV1::Expr, decorator: Google::Apis::IamV1::Expr::Representation
 
           collection :members, as: 'members'

generated/google/apis/iam_v1/synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/google-api-ruby-client.git",
-        "sha": "9840c481849200572321532ecc3b128bebbc1583"
+        "sha": "64251b516a71bd1bdcc1a7d3ac934182b38a11a7"
       }
     }
   ]