fix: PDM fails running a script with PEP723 metadata with uv

[frostming]

Fixes #3382

Signed-off-by: Frost Ming me@frostming.com

Pull Request Checklist

• A news fragment is added in news/ describing what is new.
• Test cases added for changed code.

Describe what you have changed in this PR.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.22%. Comparing base (d363210) to head (c3f5c30).
Report is 60 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3383      +/-   ##
==========================================
- Coverage   85.22%   85.22%   -0.01%     
==========================================
  Files         112      112              
  Lines       11494    11493       -1     
  Branches     2520     2520              
==========================================
- Hits         9796     9795       -1     
  Misses       1172     1172              
  Partials      526      526              

Flag	Coverage Δ
unittests	84.52% <100.00%> (+0.15%)	⬆️

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