ci: target x86-64-v3 in benchmarks workflow

[xtqqczze]

Ubuntu 26.04 builds packages targeting x86-64-v3, so using this target for benchmarks better reflects real-world performance.

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/cut/bounded-memory (passes in this run but fails in the 'main' branch)
Skipping an intermittent issue tests/pr/bounded-memory (passes in this run but fails in the 'main' branch)
Note: The gnu test tests/printf/printf-surprise is now being skipped but was previously passing.

[codspeed-hq]

Merging this PR will improve performance by ×3.3

⚠️ 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

⚡ 40 improved benchmarks
✅ 271 untouched benchmarks
⏩ 46 skipped benchmarks¹

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	Simulation	wc_lines_large_line_count[500000]	2.6 ms	2.5 ms	+6.25%
⚡	Simulation	wc_chars_large_line_count[100000]	713.4 µs	683 µs	+4.45%
⚡	Simulation	wc_lines_variable_length[(50, 500)]	3.2 ms	3 ms	+6.32%
⚡	Simulation	wc_bytes_lines_synthetic[2000]	120.8 ms	113.3 ms	+6.65%
⚡	Simulation	wc_lines_extreme_line_lengths[(100000, 200)]	1.4 ms	1.3 ms	+5.68%
⚡	Simulation	df_deep_directory	368.3 µs	344.9 µs	+6.79%
⚡	Simulation	true_consecutive_calls	199.4 ns	170.3 ns	+17.13%
⚡	Simulation	sort_ascii_c_locale	16 ms	15.1 ms	+5.98%
⚡	Simulation	merge_pre_sorted_files	102.8 ms	98.9 ms	+4.01%
⚡	Simulation	split_lines	5.6 ms	4.6 ms	+21.33%
⚡	Simulation	split_numeric_suffix	5.8 ms	4.8 ms	+20.46%
⚡	Simulation	false_consecutive_calls	199.4 ns	170.3 ns	+17.13%
⚡	Simulation	timeout_quick_exit	198.1 µs	191.9 µs	+3.22%
⚡	Simulation	cksum_sha3	1.8 s	1.4 s	+30.39%
⚡	Simulation	cksum_sha384	1.1 s	1 s	+7.26%
⚡	Simulation	cksum_shake256	1.9 s	1.4 s	+29.41%
⚡	Simulation	cksum_sha224	1.8 s	1.5 s	+19.36%
⚡	Simulation	cksum_sha256	1.8 s	1.5 s	+19.36%
⚡	Simulation	cksum_sm3	1.6 s	1.3 s	+19.3%
⚡	Simulation	cksum_crc	16.8 ms	14.7 ms	+14.87%
...	...	...	...	...	...

ℹ️ Only the first 20 benchmarks are displayed. Go to the app to view all benchmarks.

---

_{Comparing xtqqczze:x86-64-v3 (380fcbc) with main (5aade31)²}

Footnotes

1. 46 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 main (dd72eca) during the generation of this report, so 5aade31 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[oech3]

This is misleading for people using binaries published at here and other distributions.

[oech3]

I think we can replace individual binaries with v3.