chore(master): release 0.4.0

[release-please]

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

0.4.0 (2021-02-22)

Features

• v1beta2: added ApplySoftwareUpdate API (#302) (184ba12)

Documentation

• generate sample code in the Java microgenerator (#300) (182927c)
• various clarifications, new documentation for ApplySoftwareUpdate (184ba12)

Dependencies

• update dependency com.google.cloud:google-cloud-shared-dependencies to v0.19.0 (#312) (f5b28ca)

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This PR was generated with Release Please. See documentation.

[codecov]

Codecov Report

Merging #301 (c3c86c0) into master (dbd0881) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #301   +/-   ##
=========================================
  Coverage     79.35%   79.35%           
  Complexity      177      177           
=========================================
  Files            12       12           
  Lines          1424     1424           
  Branches         13       13           
=========================================
  Hits           1130     1130           
  Misses          273      273           
  Partials         21       21           

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[yoshi-automation]

🤖 Release is at https://github.com/googleapis/java-memcache/releases/tag/v0.4.0 🌻

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

[release-tool-publish-reporter]

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