CompatHelper: bump compat for DynamicPPL in [weakdeps] to 0.29, (keep existing compat)

[github-actions]

This pull request changes the compat entry for the DynamicPPL package from 0.25.2, 0.27, 0.28 to 0.25.2, 0.27, 0.28, 0.29.
This keeps the compat entries for earlier versions.

Note: I have not tested your package with this new compat entry.
It is your responsibility to make sure that your package tests pass before you merge this pull request.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.52%. Comparing base (02989d0) to head (27f3ac2).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #211   +/-   ##
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  Coverage   83.52%   83.52%           
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  Files          13       13           
  Lines         601      601           
=======================================
  Hits          502      502           
  Misses         99       99           

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