[Release 3.4.0] Gradle 9.2.0 and GitHub Actions JDK 25 Upgrade

Coming from META:

• [META] [3.4.0] Bump Gradle to 9.2.0 and GitHub Action JDK to 25 opensearch-build#5831

Background

Following OpenSearch Core Engine's upgrade to Gradle 9.2.0 and JDK 25 (opensearch-project/OpenSearch#19314),
all OpenSearch plugins and components need corresponding version updates.

Required Changes

1. Gradle Upgrade

Update to Gradle 9.2.0:
./gradlew wrapper --gradle-version 9.2.0 --distribution-type all --gradle-distribution-sha256-sum 16f2b95838c1ddcf7242b1c39e7bbbb43c842f1f1a1a0dc4959b6d4d68abcac3

2. GitHub Actions Update

• Locate all workflow files in .github/workflows/ that has JDK 24
• Update JDK version from 24 to 25

3. Dependencies

Review and update dependencies as needed for JDK 25 compatibility

Important Notes

⚠️ Do NOT change the minimum Java compatibility version in build.gradle as it must remain at Java 21

Support

Contact: @andrross @Divyaasm @peterzhuamazon @getsaurabh02

Thanks.