fix: unable to force install specific version with pdm

[frostming]

Fixes #2586

Signed-off-by: Frost Ming [email protected]

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 ✅

Comparison is base (9ec9ba6) 84.79% compared to head (d4d7853) 84.80%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2587   +/-   ##
=======================================
  Coverage   84.79%   84.80%           
=======================================
  Files         104      104           
  Lines       10388    10390    +2     
  Branches     2272     2273    +1     
=======================================
+ Hits         8809     8811    +2     
  Misses       1105     1105           
  Partials      474      474           

Flag	Coverage Δ
unittests	84.59% <100.00%> (+<0.01%)	⬆️

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