chore: release 2.2.2 (#351)

🤖 I have created a release \*beep\* \*boop\* 
---
### [2.2.2](https://www.github.com/googleapis/java-dlp/compare/v2.2.1...v2.2.2) (2020-11-17)


### Dependencies

* update dependency com.google.cloud:google-cloud-shared-dependencies to v0.15.0 ([#346](https://www.github.com/googleapis/java-dlp/issues/346)) ([3acd318](https://www.github.com/googleapis/java-dlp/commit/3acd318e84ac13a44a2c53d171e129857c4ea51b))
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This PR was generated with [Release Please](https://github.com/googleapis/release-please).

dlp/snippets/snapshot/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-dlp</artifactId>
-      <version>2.2.2-SNAPSHOT</version>
+      <version>2.2.2</version>
     </dependency>
     <!-- {x-version-update-end} -->