Pass through --remap-path-prefix argument.

[ColinFinck]

I don't see what's special about the --remap-path-prefix argument that it was marked as TooHard and not just passed through.
I'm changing it to PassThrough here. This change has worked in a local test.

Please put my PR under scrutiny. This argument has been unsupported by sccache for a long time and it feels too simple to just change it to PassThrough.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 40.71%. Comparing base (0cc0c62) to head (9aebab5).
Report is 81 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2270      +/-   ##
==========================================
+ Coverage   30.91%   40.71%   +9.80%     
==========================================
  Files          53       54       +1     
  Lines       20112    20747     +635     
  Branches     9755     9642     -113     
==========================================
+ Hits         6217     8448    +2231     
- Misses       7922     8152     +230     
+ Partials     5973     4147    -1826     

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[ColinFinck]

Bump

Is there anybody else who could review my PR?