chore: release 2.3.0 (#449)

🤖 I have created a release \*beep\* \*boop\*
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## [2.3.0](https://www.github.com/googleapis/java-dlp/compare/v2.2.9...v2.3.0) (2021-03-11)


### Features

* **generator:** update protoc to v3.15.3 ([#448](https://www.github.com/googleapis/java-dlp/issues/448)) ([a1364b3](https://www.github.com/googleapis/java-dlp/commit/a1364b34da45d59212fd00c6c8fc17ba0f17ee8d))


### Dependencies

* update dependency com.google.cloud:google-cloud-shared-dependencies to v0.20.1 ([#461](https://www.github.com/googleapis/java-dlp/issues/461)) ([91384fd](https://www.github.com/googleapis/java-dlp/commit/91384fd97a4dc7d40839d5580e8f7dc1ae3f371b))
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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).

dlp/snippets/snapshot/pom.xml

@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-dlp</artifactId>
-      <version>2.2.10-SNAPSHOT</version>
+      <version>2.3.0</version>
     </dependency>
     <!-- {x-version-update-end} -->