Bump protobuf-java in /wink-providers/wink-protobuf-provider

Bumps [protobuf-java](https://github.com/protocolbuffers/protobuf) from 2.4.0a to 3.16.3.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/main/generate_changelog.py)
- [Commits](https://github.com/protocolbuffers/protobuf/commits/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/wink-providers/wink-protobuf-provider/pom.xml b/wink-providers/wink-protobuf-provider/pom.xml
index 080a203..dbb1e3a 100644
--- a/wink-providers/wink-protobuf-provider/pom.xml
+++ b/wink-providers/wink-protobuf-provider/pom.xml
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>2.4.0a</version>
+            <version>3.16.3</version>
         </dependency>
         <dependency>
             <groupId>org.apache.wink</groupId>