[Backport 2.x] Bump version of protobuf-java to 3.22.2 (#6994)

[tlfeng]

Description

Backport PR #6994 / commit 53b128f to 2.x branch

There are 3 Gradle sub-projects declared protobuf-java dependency. They have got different version due to upgrade alone.
This PR will unify the version of library protobuf-java used in OpenSearch.

Changed the version for the below 3 libraries in 2 directories.
plugins/repository-gcs/build.gradle :

api 'com.google.protobuf:protobuf-java-util:3.22.2'
api 'com.google.protobuf:protobuf-java:3.22.2'

test/fixtures/hdfs-fixture/build.gradle :

api 'com.google.protobuf:protobuf-java:3.22.2'

There is another protobuf-java dependency declared in plugins/repository-hdfs/build.gradle, the version is already 3.22.2.

Issues Resolved

[List any issues this PR will resolve]

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• 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.

[tlfeng]

Note: Deleted Line 28 because Line 41 saying the same, and removing this line makes it identical with main branch

OpenSearch/CHANGELOG.md

Line 116 in 53b128f

- Bump `com.azure:azure-storage-blob` from 12.15.0 to 12.21.1

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.backwards.MixedClusterClientYamlTestSuiteIT.test {p0=pit/10_basic/Delete all}

• URL: https://build.ci.opensearch.org/job/gradle-check/13626/
• CommitID: f3a73e9
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov-commenter]

Codecov Report

Merging #7024 (f3a73e9) into 2.x (2ce07f2) will decrease coverage by 0.05%.
The diff coverage is n/a.

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@@             Coverage Diff              @@
##                2.x    #7024      +/-   ##
============================================
- Coverage     70.45%   70.40%   -0.05%     
+ Complexity    59520    59510      -10     
============================================
  Files          4822     4822              
  Lines        285910   285910              
  Branches      41551    41551              
============================================
- Hits         201424   201308     -116     
- Misses        67656    67759     +103     
- Partials      16830    16843      +13     

see 475 files with indirect coverage changes

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