[CMAKE] Upgrade ryml to 0.15.2

[dbarker]

Contributes to #4163

Changes

• Upgrade ryml to 0.15.2

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.86%. Comparing base (6cf9b00) to head (e1fc07a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4185   +/-   ##
=======================================
  Coverage   82.86%   82.86%           
=======================================
  Files         405      405           
  Lines       17287    17287           
=======================================
  Hits        14324    14324           
  Misses       2963     2963           

Files with missing lines	Coverage Δ
sdk/src/configuration/ryml_document.cc	69.12% <ø> (ø)

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