ls: Use rustc-hash at colors

[oech3]

No description provided.

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/inotify-dir-recreate (passes in this run but fails in the 'main' branch)

[sylvestre]

some jobs are failing

[codspeed-hq]

Merging this PR will not alter performance

✅ 294 untouched benchmarks
⏩ 42 skipped benchmarks¹

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_{Comparing oech3:lscolh (40d9da1) with main (9ac174b)}

Footnotes

1. 42 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. ↩

[oech3]

Really 0% perf change. Just for binary size.

[sylvestre]

Really 0% perf change. Just for binary size.

do you have the numbers ?

[oech3]

stripped, current --release: 2172960 -> 2171200

[github-actions]

GNU testsuite comparison:

Note: The gnu test tests/tail/pipe-f is now being skipped but was previously passing.

[github-actions]

GNU testsuite comparison:

Congrats! The gnu test tests/pr/bounded-memory is no longer failing!

[oech3]

needed for consistency for ls code.

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/date/date-locale-hour (fails in this run but passes in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Congrats! The gnu test tests/csplit/csplit-heap is now passing!

[sylvestre]

needed for consistency for ls code.

could you please elaborate ?
thanks

[oech3]

FxHash* is already used at ls.rs for perf. So we can use this at ls/src/colors.rs for consistency.