[Backport 2.x] Bump protobuf-java to 3.21.7 in repository-gcs and repository-hdfs.

[ryanbogan]

Description

Backports 4790 to 2.x

Check List

• [X ] New functionality includes testing.
  • [X ] All tests pass
• [ X] New functionality has been documented.
  • [X ] New functionality has javadoc added
• [X ] Commits are signed per the DCO using --signoff
• [ X] Commit changes are listed out in CHANGELOG.md file (See: Changelog)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[adnapibar]

@ryanbogan can you use a proper commit message for backports (e.g. [Backport 2.x] Bump protobuf-java to 3.21.7 in repository-gcs and repository-hdfs)

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/5081/
• CommitID: a3cc3bc

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/5100/
• CommitID: 7727d3c