Bump com.google.protobuf:protobuf-java

Bumps [com.google.protobuf:protobuf-java](https://github.com/protocolbuffers/protobuf) from 3.15.2 to 3.16.3.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/protobuf_release.bzl)
- [Commits](https://github.com/protocolbuffers/protobuf/compare/v3.15.2...v3.16.3)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/wayang-commons/wayang-serializable/pom.xml b/wayang-commons/wayang-serializable/pom.xml
index dbc3996..a6e4fcb 100644
--- a/wayang-commons/wayang-serializable/pom.xml
+++ b/wayang-commons/wayang-serializable/pom.xml
@@ -33,7 +33,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <protobuf.version>3.15.2</protobuf.version>
+        <protobuf.version>3.16.3</protobuf.version>
         <protoc.version>3.15.2</protoc.version>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>