esm: fix path normalization in finalizeResolution

[aduh95]

Fixes: https://github.com/nodejs/node/pull/61478/changes/BASE..6cd90e1c0167f94c7dc671d10316e561c81f26af#r2871221559

[nodejs-github-bot]

Review requested:

• @nodejs/loaders

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.65%. Comparing base (88be44d) to head (c02f991).
⚠️ Report is 17 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #62080      +/-   ##
==========================================
- Coverage   89.65%   89.65%   -0.01%     
==========================================
  Files         676      676              
  Lines      206326   206326              
  Branches    39520    39525       +5     
==========================================
- Hits       184990   184989       -1     
+ Misses      13471    13466       -5     
- Partials     7865     7871       +6     

Files with missing lines	Coverage Δ
lib/internal/modules/esm/resolve.js	99.04% <100.00%> (+0.09%)	⬆️

... and 29 files with indirect coverage changes

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[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/71564/