chore: release 0.2.1

[release-please]

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

0.2.1 (2020-02-04)

Dependencies

• update core dependencies (#16) (e4f0062)
• update core dependencies (#33) (7439529)
• update dependency com.google.guava:guava-bom to v28.2-android (#10) (6a57a00)
• update dependency com.google.protobuf:protobuf-java to v3.11.3 (#35) (38e6ec3)
• update dependency org.threeten:threetenbp to v1.4.1 (#25) (a836ee3)

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This PR was generated with Release Please.

[codecov]

Codecov Report

Merging #26 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #26   +/-   ##
=========================================
  Coverage     75.02%   75.02%           
  Complexity      101      101           
=========================================
  Files             6        6           
  Lines           837      837           
  Branches         11       11           
=========================================
  Hits            628      628           
  Misses          192      192           
  Partials         17       17

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[yoshi-automation]

Release is at https://github.com/googleapis/java-secretmanager/releases/tag/v0.2.1

[yoshi-automation]

The release build has started, the log can be viewed here. 🌻

[yoshi-automation]

🥚 You hatched a release! The release build finished successfully! 💜