uucore: share the caret diagnostic plumbing across the utilities

[sylvestre]

Adds OptionValue (a value with the option it came from), Snapshot::render_option,
list_items and error_after_report, and ports the utilities onto them: four
spellings of the value/short/long triple, three identical render() bodies and
fifteen copies of the report-then-quiet idiom become one each.

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[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/date/date-locale-hour (passes in this run but fails in the 'main' branch)
Note: The gnu test tests/tail/pipe-f is now being skipped but was previously passing.

[codspeed-hq]

Merging this PR will regress 1 benchmark

⚠️ Different runtime environments detected

Some benchmarks with significant performance changes were compared across different runtime environments,
which may affect the accuracy of the results.

Open the report in CodSpeed to investigate

⚡ 1 improved benchmark
❌ 1 regressed benchmark
✅ 42 untouched benchmarks
⏩ 363 skipped benchmarks¹

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Simulation	du_wide_tree[(5000, 500)]	20 ms	20.7 ms	-3.16%
⚡	Simulation	cksum_crc32b	42.4 ms	40.8 ms	+3.92%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing caret-uucore-share (7209ddc) with main (f2987b5)²}

Footnotes

1. 363 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. ↩

2. No successful run was found on caret-dd-test-shim (f2987b5) during the generation of this report, so main (f2987b5) was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

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