fs: fix buffer input with recursive mode on readdir

[himself65]

Fixes: #58892

[nodejs-github-bot]

Review requested:

• @nodejs/test_runner
• @nodejs/url

[codecov]

Codecov Report

❌ Patch coverage is 97.36842% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 90.07%. Comparing base (04c5a18) to head (2bd843b).
⚠️ Report is 2889 commits behind head on main.

Files with missing lines	Patch %	Lines
src/node_file.cc	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@ Coverage Diff @@## main #59220 +/- ##
==========================================
+ Coverage 90.04% 90.07% +0.02% 
==========================================
Files 648 648 Lines 191200 191234 +34 Branches 37472 37482 +10 ==========================================
+ Hits 172160 172247 +87 + Misses 11665 11606 -59 - Partials 7375 7381 +6 

Files with missing lines	Coverage Δ
lib/fs.js	98.18% <100.00%> (+<0.01%)	⬆️
lib/internal/fs/utils.js	99.39% <100.00%> (+0.02%)	⬆️
src/node_file.cc	75.85% <0.00%> (-0.04%)	⬇️

... and 29 files with indirect coverage changes

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[himself65]

this might be not a good solution. let me find another way

[aduh95]

That's definitely a wrong solution, we need Buffer to support non-unicode paths

[himself65]

yeah, I see path = getValidatedPath(path); is a misleading code, the rest of the logic is pretending path is string but it's actually not. If I change getValidatedPath to support buffer + options.encoding I would guess it will have lot of performance regression

[himself65]

I think I find a good way

[github-actions]

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