Bump protobuf-java from 3.19.4 to 3.19.6

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.19.4 to 3.19.6.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v3.19.4...v3.19.6)

---
updated-dependencies:
- dependency-name: com.google.protobuf:protobuf-java
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -77,7 +77,7 @@
     <commons.codec.version>1.4</commons.codec.version>
     <cdap.version>6.7.0-SNAPSHOT</cdap.version>
     <cdap.plugin.version>2.9.0-SNAPSHOT</cdap.plugin.version>
-    <google.protobuf.java.version>3.19.4</google.protobuf.java.version>
+    <google.protobuf.java.version>3.19.6</google.protobuf.java.version>
     <guava.version>27.0.1-jre</guava.version>
     <httpclient.version>4.5.6</httpclient.version>
     <jackson.core.version>2.9.10.1</jackson.core.version>