fix: inherit_metadata would be written in lock file if the file is not pdm.lock even strategy config is true

[frostming]

Fixes #3232

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

Attention: Patch coverage is 66.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 85.42%. Comparing base (4401ff5) to head (4937eaf).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/pdm/project/core.py	66.66%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3236      +/-   ##
==========================================
- Coverage   85.42%   85.42%   -0.01%     
==========================================
  Files         112      112              
  Lines       11323    11318       -5     
  Branches     2459     2457       -2     
==========================================
- Hits         9673     9668       -5     
  Misses       1125     1125              
  Partials      525      525              

Flag	Coverage Δ
unittests	85.21% <66.66%> (-0.01%)	⬇️

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