deps: update dependency com.google.protobuf:protobuf-java to v3.20.0 (#1621)
deps: update dependency com.google.protobuf:protobuf-java to v3.20.0 (#1621)


googleapis/google-http-java-client,googleapis/google-http-java-client,googleapis/google-http-java-client,googleapis/google-http-java-client