Bump protobuf-java from 3.15.8 to 3.16.0

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.15.8 to 3.16.0.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/master/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v3.15.8...v3.16.0)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -54,7 +54,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <gson.version>2.8.6</gson.version>
-        <protobuf.version>3.15.8</protobuf.version>
+        <protobuf.version>3.16.0</protobuf.version>
         <slf4j-api.version>1.7.30</slf4j-api.version>
         <log4j.version>2.14.1</log4j.version>
         <lmax-disruptor.version>3.4.4</lmax-disruptor.version>