perf: use path.as_os_str().hash() instead of path.hash()

[Boshen]

No description provided.

[codspeed-hq]

CodSpeed Performance Report

Merging #316 will improve performances by 13.84%

_{Comparing perf-hash (3cbbbdc) with main (6e45c48)}

Summary

⚡ 3 improvements

Benchmarks breakdown

	Benchmark	main	perf-hash	Change
⚡	resolver[multi-thread]	531.3 µs	466.7 µs	+13.84%
⚡	resolver[resolve from symlinks]	63 ms	52 ms	+21.06%
⚡	resolver[single-thread]	491.8 µs	428.5 µs	+14.77%

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.06%. Comparing base (6e45c48) to head (3cbbbdc).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #316   +/-   ##
=======================================
  Coverage   97.06%   97.06%           
=======================================
  Files          11       11           
  Lines        2454     2454           
=======================================
  Hits         2382     2382           
  Misses         72       72           

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