[CHANGE ME] Re-generated google-cloud-pubsub to pick up changes in the API or client library generator.

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Commits in this repo since last synth:
828319e chore: require the simplecov library explicitly in test helpers
970a602 feat(bigquery): Add Range Partitioning ()
5a14fd6 feat(firestore): Add IN and ARRAY_CONTAINS_ANY query operators
be9f1a8 chore: fix synth of a few more libraries to remove release levels
a291956 docs(dataproc): Update product branding
2adc1f6 Release google-cloud-tasks 1.4.0 (#4857)
7558da1 Release google-cloud-dataproc 0.9.0 (#4856)
6b6c878 Release google-cloud-recommender-v1 0.1.1 (#4851)
136251b Release google-cloud-secret_manager-v1beta1 0.2.2 (#4846)
c9dc0fa Release google-cloud-billing-v1 0.1.1 (#4845)
2ea547b Release google-cloud-logging 1.9.5 (#4837)
b55ced5 fix(security_center)!: Remove unused resource path helpers
327eda6 feat(tasks): Add Queue#stackdriver_logging_config (StackdriverLoggingConfig)
30e7958 chore(spanner): Deprecate Instance#endpoint_uris in the lower-level client
37aceec feat(dataproc): Add SparkRJob, PrestoJob, LifecycleConfig and ReservationAffinity
8d7d444 chore: add documentation links to repo-metadata files
a2e741c docs(google-cloud-secret_manager-v1beta1): Update homepage in README and gemspec
7af0e57 docs(google-cloud-recommender-v1): Update homepage in README and gemspec
f2df7c7 docs(google-cloud-billing-v1): Update homepage in README and gemspec
feb41a6 docs(logging): Fix doc links to Cmek methods in lower-level client
6d80ff9 chore: remove release level string from readmes and yardocs
364b8ae Release google-cloud-pubsub 1.3.1 (#4826)
72d1714 Release google-cloud-monitoring 0.35.1 (#4831)
693b760 Release google-cloud-container 0.9.0 (#4824)
578b5cf Release google-cloud-spanner 1.14.0 (#4814)

Log from Synthtool

synthtool > Executing /tmpfs/src/git/autosynth/working_repo/google-cloud-pubsub/synth.py.
synthtool > Ensuring dependencies.
synthtool > Pulling artman image.
latest: Pulling from googleapis/artman
Digest: sha256:36956ca6a4dc70a59de5d5d0fd35061b050bb56884516f0898f46d8220f25738
Status: Image is up to date for googleapis/artman:latest
synthtool > Cloning googleapis.
synthtool > Running generator for google/pubsub/artman_pubsub.yaml.
synthtool > Generated code into /home/kbuilder/.cache/synthtool/googleapis/artman-genfiles/ruby/google-cloud-ruby/google-cloud-pubsub.
synthtool > Replaced 'require "google/cloud/pub_sub' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced 'require "google/cloud/pub_sub' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced 'google-cloud-pub_sub' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced 'google-cloud-pub_sub' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced '\n    end\n  end\nend' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced '\n    end\n  end\nend' in lib/google/cloud/pubsub/v1/credentials.rb.
synthtool > Replaced '\n    end\n  end\nend' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced '\n(\\s+)#(\\s+)@param exception_transformer' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced '\n(\\s+)#(\\s+)@param exception_transformer' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced '\n(\\s+)metadata: nil,\n\\s+exception_transformer: nil,\n' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced '\n(\\s+)metadata: nil,\n\\s+exception_transformer: nil,\n' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced 'service_path = self\\.class::SERVICE_ADDRESS' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced 'service_path = self\\.class::SERVICE_ADDRESS' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced 'port = self\\.class::DEFAULT_SERVICE_PORT' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced 'port = self\\.class::DEFAULT_SERVICE_PORT' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced 'SCOPE = \\[[^\\]]+\\]\\.freeze' in lib/google/cloud/pubsub/v1/credentials.rb.
synthtool > Replaced '\n(\\s+)#[^\n]*[^\n#\\$\\\\]\\{[\\w,]+\\}' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced '\n(\\s+)#[^\n]*[^\n#\\$\\\\]\\{[\\w,]+\\}' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced '\n(\\s+)#[^\n]*[^\n#\\$\\\\]\\{[\\w,]+\\}' in lib/google/cloud/pubsub/v1/doc/google/protobuf/timestamp.rb.
synthtool > Replaced '\n(\\s+)#[^\n]*[^\n#\\$\\\\]\\{[\\w,]+\\}' in lib/google/cloud/pubsub/v1/doc/google/pubsub/v1/pubsub.rb.
synthtool > Replaced '(\n\\s+class \\w+Client\n)(\\s+)(attr_reader :\\w+_stub)' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced '(\n\\s+class \\w+Client\n)(\\s+)(attr_reader :\\w+_stub)' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/credentials.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/protobuf/empty.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/protobuf/duration.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/protobuf/field_mask.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/protobuf/timestamp.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/iam/v1/options.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/iam/v1/policy.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/iam/v1/iam_policy.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/pubsub/v1/pubsub.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/cloud/pubsub/v1/doc/google/type/expr.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/pubsub/v1/pubsub_services_pb.rb.
synthtool > Replaced '\\A(((#[^\n]*)?\n)*# (Copyright \\d+|Generated by the protocol buffer compiler)[^\n]+\n(#[^\n]*\n)*\n)([^\n])' in lib/google/pubsub/v1/pubsub_pb.rb.
synthtool > Replaced '\nmodule Google::Cloud::PubSub::V1\n' in lib/google/pubsub/v1/pubsub_services_pb.rb.
synthtool > Replaced '\nmodule Google::Cloud::PubSub::V1\n' in lib/google/pubsub/v1/pubsub_pb.rb.
synthtool > Replaced 'Google::Pubsub' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced 'Google::Pubsub' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced 'Google::Pubsub' in lib/google/cloud/pubsub/v1/doc/google/pubsub/v1/pubsub.rb.
synthtool > Replaced '\n  module Pubsub\n' in lib/google/cloud/pubsub/v1/doc/google/pubsub/v1/pubsub.rb.
synthtool > Replaced '\n  end\n' in lib/google/cloud/pubsub/v1/doc/google/pubsub/v1/pubsub.rb.
synthtool > Replaced '(require ".*credentials"\n)\n' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced '(require ".*credentials"\n)\n' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Replaced 'Gem.loaded_specs\\[.*\\]\\.version\\.version' in lib/google/cloud/pubsub/v1/publisher_client.rb.
synthtool > Replaced 'Gem.loaded_specs\\[.*\\]\\.version\\.version' in lib/google/cloud/pubsub/v1/subscriber_client.rb.
synthtool > Wrote metadata to synth.metadata.

[quartzmo]

chore(pubsub): Update copyright year in lower-level client