chore(master): release 2.2.7 (#424)

🤖 I have created a release \*beep\* \*boop\* 
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### [2.2.7](https://www.github.com/googleapis/java-dlp/compare/v2.2.6...v2.2.7) (2021-02-22)


### Documentation

* generate sample code in the Java microgenerator ([#419](https://www.github.com/googleapis/java-dlp/issues/419)) ([f65322c](https://www.github.com/googleapis/java-dlp/commit/f65322cf1fd0572bf08b00097e354fbcae5e7c1b))


### Dependencies

* update dependency com.google.cloud:google-cloud-shared-dependencies to v0.19.0 ([#430](https://www.github.com/googleapis/java-dlp/issues/430)) ([54a5ffc](https://www.github.com/googleapis/java-dlp/commit/54a5ffcdcd7220aecd8a791376e823b45208ec56))
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This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

Author: release-please[bot]

dlp/snippets/snapshot/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-dlp</artifactId>
-      <version>2.2.7-SNAPSHOT</version>
+      <version>2.2.7</version>
     </dependency>
     <!-- {x-version-update-end} -->