fix: normalize process.cwd on windows

[danielroe]

resolves #30

[codecov]

Codecov Report

Merging #31 (7b786d9) into main (d429aa2) will increase coverage by 0.41%.
The diff coverage is 0.00%.

❗ Current head 7b786d9 differs from pull request most recent head b371f9f. Consider uploading reports for the commit b371f9f to get more accurate results

@@            Coverage Diff             @@
##             main      #31      +/-   ##
==========================================
+ Coverage   60.00%   60.41%   +0.41%     
==========================================
  Files           3        3              
  Lines         240      240              
  Branches       81       80       -1     
==========================================
+ Hits          144      145       +1     
  Misses         18       18              
+ Partials       78       77       -1     

Impacted Files	Coverage Δ
src/path.ts	60.77% <0.00%> (+0.43%)	⬆️

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[pi0]

Thanks!