fix: improve the error report for resolution

[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

Base: 85.35% // Head: 85.31% // Decreases project coverage by -0.03% ⚠️

Coverage data is based on head (3290273) compared to base (c12422f).
Patch coverage: 90.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1519      +/-   ##
==========================================
- Coverage   85.35%   85.31%   -0.04%     
==========================================
  Files          91       91              
  Lines        8001     8007       +6     
  Branches     1897     1899       +2     
==========================================
+ Hits         6829     6831       +2     
- Misses        783      786       +3     
- Partials      389      390       +1     

Flag	Coverage Δ
unittests	85.13% <90.00%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/pdm/cli/utils.py	82.74% <0.00%> (ø)
src/pdm/models/candidates.py	87.98% <100.00%> (+0.18%)	⬆️
src/pdm/resolver/providers.py	95.38% <100.00%> (ø)
src/pdm/resolver/reporters.py	97.77% <100.00%> (+0.05%)	⬆️
src/pdm/models/repositories.py	79.92% <0.00%> (-0.79%)	⬇️
src/pdm/termui.py	89.85% <0.00%> (-0.73%)	⬇️
src/pdm/cli/actions.py	78.50% <0.00%> (-0.25%)	⬇️

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