Fix MSVC + CUDA + Ninja multi-config command line parsing

[nikolaseu]

Fixes #2470

[codecov-commenter]

Codecov Report

❌ Patch coverage is 97.50000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 74.38%. Comparing base (c037e11) to head (3b7e6c1).

Files with missing lines	Patch %	Lines
src/compiler/nvcc.rs	97.50%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2764      +/-   ##
==========================================
+ Coverage   74.32%   74.38%   +0.05%     
==========================================
  Files          71       71              
  Lines       40789    40864      +75     
==========================================
+ Hits        30318    30395      +77     
+ Misses      10471    10469       -2     

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[codspeed-hq]

Merging this PR will not alter performance

✅ 58 untouched benchmarks
⏩ 6 skipped benchmarks¹

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_{Comparing nikolaseu:fix-msvc-cuda-ninja-multi-config (3b7e6c1) with main (c037e11)}

Footnotes

1. 6 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩