Bump protobuf-java from 3.9.2 to 3.16.1 in /tensorflow/java/maven/proto#6

dependabot[bot] wants to merge 1 commit intor2.6/sdk-release-3.0graphcore/tensorflow:r2.6/sdk-release-3.0from

dependabot/maven/tensorflow/java/maven/proto/com.google.protobuf-protobuf-java-3.16.1graphcore/tensorflow:dependabot/maven/tensorflow/java/maven/proto/com.google.protobuf-protobuf-java-3.16.1Copy head branch name to clipboard