Bump default common-utils version to 3.8.0.0

[DarshitChanpura]

Description

Bumps the default common_utils_version in build.gradle from 3.2.0.0 to 3.8.0.0 to align with the target OpenSearch 3.8 version.

Check List

• New functionality includes testing (n/a — build config change)
• Commits are signed per the DCO using --signoff

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.

[github-actions]

PR Code Analyzer ❗

AI-powered 'Code-Diff-Analyzer' found issues on commit e2c1136.

⛔ Hard block: Issues at High severity or above will block this PR from merging.

Path	Line	Severity	Description
build.gradle	28	high	Dependency version change: common_utils_version bumped from 3.2.0.0 to 3.8.0.0. Per mandatory supply chain rules, all dependency version changes must be flagged. The jump of 6 minor versions is significant and the artifact authenticity of the new version cannot be verified here. Maintainers should confirm this version exists in the expected registry, was released by the expected publisher, and that the changelog between 3.2.0.0 and 3.8.0.0 contains no unexpected behavior.

The table above displays the top 10 most important findings.

Total: 1 | Critical: 0 | High: 1 | Medium: 0 | Low: 0

---

Pull Requests Author(s): Please update your Pull Request according to the report above.

Repository Maintainer(s): You can bypass diff analyzer by adding label skip-diff-analyzer after reviewing the changes carefully, then re-run failed actions. To re-enable the analyzer, remove the label, then re-run all actions.

---

⚠️ Note: The Code-Diff-Analyzer helps protect against potentially harmful code patterns. Please ensure you have thoroughly reviewed the changes beforehand.

Thanks.