chore: release 1.108.0

[release-please]

🤖 I have created a release *beep* *boop*

1.108.0 (2020-07-09)

Features

• deps: adopt flatten plugin and google-cloud-shared-dependencies (#259) (6b0947b)
• implement max duration per ack extension (#211) (1427b8c)
• regenerated to pick up doc changes (#246) (a5f45ac)
• Send streaming pull flow control settings to server (#267) (9c750c8)

Dependencies

• update autovalue.version to v1.7.3 (#244) (6af6682)
• update dependency com.google.cloud:google-cloud-shared-dependencies to v0.8.1 (#247) (fbceaed)
• update dependency com.google.cloud:google-cloud-shared-dependencies to v0.8.2 (#274) (b101905)

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This PR was generated with Release Please.

[codecov]

Codecov Report

Merging #258 into master will increase coverage by 0.55%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #258      +/-   ##
============================================
+ Coverage     78.63%   79.18%   +0.55%     
  Complexity      317      317              
============================================
  Files            21       21              
  Lines          2888     2888              
  Branches        155      155              
============================================
+ Hits           2271     2287      +16     
  Misses          537      537              
+ Partials         80       64      -16     

Impacted Files	Coverage Δ	Complexity Δ
...a/com/google/cloud/pubsub/v1/TopicAdminClient.java	58.95% <0.00%> (+2.31%)	34.00% <0.00%> (ø%)
...oogle/cloud/pubsub/v1/SubscriptionAdminClient.java	63.06% <0.00%> (+5.40%)	52.00% <0.00%> (ø%)

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[yoshi-automation]

Release is at https://github.com/googleapis/java-pubsub/releases/tag/v1.108.0