Handle install cache clearing

[frostming]

Pull Request Check List

• 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-commenter]

Codecov Report

Merging #604 (d60af83) into main (0f34fea) will increase coverage by 0.05%.
The diff coverage is 91.42%.

@@            Coverage Diff             @@
##             main     #604      +/-   ##
==========================================
+ Coverage   84.35%   84.40%   +0.05%     
==========================================
  Files          72       72              
  Lines        5937     5964      +27     
  Branches     1056     1063       +7     
==========================================
+ Hits         5008     5034      +26     
+ Misses        643      642       -1     
- Partials      286      288       +2     

Flag	Coverage Δ
unittests	84.22% <91.42%> (+0.05%)	⬆️

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Impacted Files	Coverage Δ
pdm/cli/commands/cache.py	85.18% <91.42%> (+3.70%)	⬆️

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