Chore: format rstest in validity tests better

[connortsui20]

I'm just cleaning out some old branches I had lying around.

This is just a manual reformatting of the rstest cases.

[codspeed-hq]

Merging this PR will degrade performance by 20.08%

⚠️ Unknown Walltime execution environment detected

Using the Walltime instrument on standard Hosted Runners will lead to inconsistent data.

For the most accurate results, we recommend using CodSpeed Macro Runners: bare-metal machines fine-tuned for performance measurement consistency.

⚡ 11 improved benchmarks
❌ 7 regressed benchmarks
✅ 1143 untouched benchmarks
⏩ 1323 skipped benchmarks¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	WallTime	u8_FoR[10M]	15.4 µs	6.7 µs	×2.3
⚡	Simulation	canonical_into_non_nullable[(10000, 1, 0.0)]	36 µs	24.7 µs	+45.78%
⚡	Simulation	canonical_into_non_nullable[(10000, 1, 0.1)]	56.9 µs	47 µs	+21.12%
⚡	Simulation	canonical_into_non_nullable[(10000, 10, 0.01)]	305.9 µs	221.2 µs	+38.31%
⚡	Simulation	canonical_into_non_nullable[(10000, 10, 0.0)]	278.7 µs	194.1 µs	+43.56%
⚡	Simulation	canonical_into_non_nullable[(10000, 1, 0.01)]	41 µs	31.2 µs	+31.36%
⚡	Simulation	canonical_into_non_nullable[(10000, 10, 0.1)]	471.5 µs	380.6 µs	+23.87%
❌	Simulation	into_canonical_non_nullable[(10000, 1, 0.01)]	38.2 µs	46.2 µs	-17.29%
⚡	Simulation	into_canonical_non_nullable[(10000, 10, 0.0)]	283.6 µs	201.6 µs	+40.69%
⚡	Simulation	into_canonical_non_nullable[(10000, 10, 0.01)]	310.4 µs	229.1 µs	+35.49%
❌	Simulation	into_canonical_non_nullable[(10000, 1, 0.0)]	32.2 µs	40.2 µs	-20.08%
❌	Simulation	canonical_into_nullable[(10000, 100, 0.0)]	4.3 ms	5 ms	-12.36%
❌	Simulation	into_canonical_non_nullable[(10000, 1, 0.1)]	54.4 µs	62.8 µs	-13.39%
⚡	Simulation	into_canonical_non_nullable[(10000, 10, 0.1)]	472.9 µs	385 µs	+22.82%
⚡	Simulation	into_canonical_nullable[(10000, 10, 0.1)]	720 µs	631.9 µs	+13.94%
❌	Simulation	into_canonical_nullable[(10000, 100, 0.1)]	6.1 ms	6.9 ms	-11.99%
❌	Simulation	into_canonical_nullable[(10000, 10, 0.0)]	458.8 µs	540.9 µs	-15.17%
❌	Simulation	into_canonical_nullable[(10000, 100, 0.0)]	4.3 ms	5.1 ms	-14.41%

---

_{Comparing ct/rstest-validity-format (2eded0d) with develop (d70a1e9)}

Footnotes

1. 1323 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. ↩

[connortsui20]

huh evidently this was not just a cosmetic change

Edit: oh whoops in that other branch there was some different logic

[robert3005]

You might have a semantic merge conflict? Ie you have old base commit that had a bug that was solved