build: upgrade to Rust 1.81

[Conaclos]

Summary

I addressed the new Clippy errors.

Test Plan

DI must pass.

[ematipico]

Do you know why this snapshot changed?

[Conaclos]

No. I wonder if it is not related to their change of implementation of sort and unstable_sort.

[ematipico]

Oh yeah, I remember. That's probably that

[github-actions]

Parser conformance results on

js/262

Test result	main count	This PR count	Difference
Total	48463	48463	0
Passed	47272	47272	0
Failed	1191	1191	0
Panics	0	0	0
Coverage	97.54%	97.54%	0.00%

jsx/babel

Test result	main count	This PR count	Difference
Total	40	40	0
Passed	37	37	0
Failed	3	3	0
Panics	0	0	0
Coverage	92.50%	92.50%	0.00%

symbols/microsoft

Test result	main count	This PR count	Difference
Total	6569	6569	0
Passed	2202	2202	0
Failed	4367	4367	0
Panics	0	0	0
Coverage	33.52%	33.52%	0.00%

ts/babel

Test result	main count	This PR count	Difference
Total	680	680	0
Passed	608	608	0
Failed	72	72	0
Panics	0	0	0
Coverage	89.41%	89.41%	0.00%

ts/microsoft

Test result	main count	This PR count	Difference
Total	18430	18430	0
Passed	14112	14112	0
Failed	4318	4318	0
Panics	0	0	0
Coverage	76.57%	76.57%	0.00%

[codspeed-hq]

CodSpeed Performance Report

Merging #3972 will not alter performance

_{Comparing conaclos/rust1.81 (be4f0a1) with main (756dd38)}

Summary

✅ 107 untouched benchmarks