chore(master): release 1.2.0

[release-please]

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

1.2.0 (2021-02-22)

Features

• v1beta2: remove DOCKER/FLINK enums from Component, add fields to ClusterConfig, InstanceGroupConfig, WorkflowTemplate, WorkflowMetadata (#411) (e8025d4)

Documentation

• generate sample code in the Java microgenerator (#437) (bb35671)

Dependencies

• update dependency com.google.cloud:google-cloud-shared-dependencies to v0.18.0 (#422) (69a78e1)
• update dependency com.google.cloud:google-cloud-shared-dependencies to v0.19.0 (#448) (db549f9)
• update dependency com.google.cloud:google-cloud-storage to v1.113.9 (#416) (d7503e7)

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This PR was generated with Release Please. See documentation.

[codecov]

Codecov Report

Merging #434 (a164279) into master (24f88a0) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #434   +/-   ##
=========================================
  Coverage     78.19%   78.19%           
  Complexity      606      606           
=========================================
  Files            48       48           
  Lines          4402     4402           
  Branches         48       48           
=========================================
  Hits           3442     3442           
  Misses          912      912           
  Partials         48       48           

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[yoshi-automation]

🤖 Release is at https://github.com/googleapis/java-dataproc/releases/tag/v1.2.0 🌻

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[release-tool-publish-reporter]

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