[BUG] Fix org.opensearch.common.xcontent.XContentParserTests.testString flaky test

[reta]

Description

[BUG] Fix org.opensearch.common.xcontent.XContentParserTests.testString flaky test (YAML codepoint calculation is unreliable).

Related Issues

Closes #12395

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Failing checks are inspected and point to the corresponding known issue(s) (See: Troubleshooting Failing Builds)
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• Public documentation issue/PR created

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]

Compatibility status:

Checks if related components are compatible with change 638d8cc

Incompatible components

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/custom-codecs.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/neural-search.git, https://github.com/opensearch-project/flow-framework.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/opensearch-oci-object-storage.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/sql.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/performance-analyzer.git]

[github-actions]

✅ Gradle check result for 638d8cc: SUCCESS

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.45%. Comparing base (b15cb0c) to head (638d8cc).
Report is 152 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #13164      +/-   ##
============================================
+ Coverage     71.42%   71.45%   +0.03%     
- Complexity    59978    60518     +540     
============================================
  Files          4985     5033      +48     
  Lines        282275   284903    +2628     
  Branches      40946    41286     +340     
============================================
+ Hits         201603   203578    +1975     
- Misses        63999    64446     +447     
- Partials      16673    16879     +206     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.