fix: pylock.toml + git dependency => lock failure.

[frostming]

Fixes #3694

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

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.96%. Comparing base (0a2e7fd) to head (0c86ee5).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/pdm/formats/pylock.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3695      +/-   ##
==========================================
- Coverage   85.96%   85.96%   -0.01%     
==========================================
  Files         119      119              
  Lines       12401    12403       +2     
  Branches     2057     2058       +1     
==========================================
+ Hits        10661    10662       +1     
- Misses       1165     1167       +2     
+ Partials      575      574       -1     

Flag	Coverage Δ
unittests	85.81% <0.00%> (-0.01%)	⬇️

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