Restore MSRV to 1.65.0

[samueltardieu]

• Revert "Update codspeed-criterion-compat requirement from 1.1.0 to 2.1.0"
• Revert "Update MSRV to 1.70.0"

[samueltardieu]

bors r+

[bors]

Merge conflict.

[samueltardieu]

bors r+

[codspeed-hq]

CodSpeed Performance Report

Merging #442 will degrade performances by 17.28%

_{Comparing restore-msrv (da496db) with main (315218d)}

🎉 Hooray! codspeed-rust just leveled up to 1.1.0!

A heads-up, this is a breaking change and it might affect your current performance baseline a bit. But here's the exciting part - it's packed with new, cool features and promises improved result stability 🥳!
Curious about what's new? Visit our releases page to delve into all the awesome details about this new version.

Summary

⚡ 9 improvements
❌ 9 regressions
✅ 14 untouched benchmarks

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

Benchmarks breakdown

	Benchmark	main	restore-msrv	Change
❌	corner_to_corner_astar	420.1 µs	432.8 µs	-2.93%
⚡	no_path_bfs	6.2 ms	5.7 ms	+8.69%
⚡	no_path_fringe	11.8 ms	11.6 ms	+2.19%
❌	fill-corner_to_corner_dijkstra	7.4 ms	7.8 ms	-5.76%
❌	corner_to_corner_bfs	6 ms	6.1 ms	-2.09%
❌	corner_to_corner_idastar	589.8 µs	628.8 µs	-6.21%
⚡	fill-corner_to_corner_fringe	668.5 µs	499.8 µs	+33.76%
❌	fill-corner_to_corner_bfs	5.6 ms	6.5 ms	-13.5%
❌	fill-corner_to_corner_idastar	557.7 µs	576.7 µs	-3.29%
⚡	arena	256 ms	249.8 ms	+2.5%
❌	fill-no_path_astar	7 ms	8.3 ms	-15.83%
⚡	no_path_dijkstra	7.8 ms	7.6 ms	+3.38%
⚡	fill-corner_to_corner_iddfs	26 ms	24.4 ms	+6.65%
⚡	fill-no_path_dijkstra	7.3 ms	6.8 ms	+7.87%
❌	fill-no_path_fringe	7.2 ms	7.7 ms	-6.83%
❌	fill-no_path_bfs	5.6 ms	6.8 ms	-17.28%
⚡	separate_components	43.9 ms	42.2 ms	+4.21%
⚡	fill-corner_to_corner_astar	639.7 µs	547 µs	+16.96%