feat: Improve YamlUtils.dumpAsMap error handling

[liferoad]

Fixes #37460

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[gemini-code-assist]

Summary of Changes

Hello @liferoad, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses an issue where YamlUtils.dumpAsMap would throw a generic YAMLException when encountering non-serializable objects within a map. The changes enhance the error reporting by catching the YAMLException and re-throwing a more informative IllegalArgumentException. This new exception explicitly lists the keys in the map that contain non-serializable values, significantly improving the debugging experience for users.

Highlights

• Improved Error Handling: The YamlUtils.dumpAsMap method now provides more specific error messages when it encounters non-serializable objects within a map, making debugging easier.
• New Helper Method: A private helper method, findNonSerializableKeys, was introduced to identify and list the exact keys in a map that contain values which cannot be serialized to YAML.
• Enhanced Test Coverage: New unit tests have been added to validate the improved error reporting for non-serializable objects and ensure correct behavior for valid YAML conversions.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 40.17%. Comparing base (4b5d149) to head (9f50d45).

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #37468      +/-   ##
============================================
+ Coverage     35.97%   40.17%   +4.19%     
- Complexity     1676     3405    +1729     
============================================
  Files          1062     1176     +114     
  Lines        165905   186521   +20616     
  Branches       1208     3581    +2373     
============================================
+ Hits          59687    74932   +15245     
- Misses       104037   108198    +4161     
- Partials       2181     3391    +1210     

Flag	Coverage Δ
java	71.94% <ø> (+4.54%)	⬆️

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