cut: support multibyte characters in non-UTF-8 locales #26297

Job	Run time
Pre-commit hooks	37s
Style/spelling (ubuntu-latest, feat_os_unix)	13s
Style/format (ubuntu-latest, feat_os_unix)	10s
Style/lint (windows-latest, feat_os_windows)	3m 33s
Style/lint (ubuntu-latest, feat_wasm, wasm32-wasip1)	1m 2s
Style/lint (macos-latest, all, true)	6m 25s
Style/lint (ubuntu-latest, all, true)	4m 31s
Style/Python	7s
	16m 38s

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