Build

Update rstest and rstest_reuse; bump MSRV to 1.67.1 #1743

Job	Run time
Type checking (MSRV, no_std)	2m 54s
Type checking (MSRV, std_no_offset)	4m 32s
Type checking (MSRV, std_with_offset)	3m 27s
Clippy	50s
Type checking (stable, no_std)	46s
Cross-build	45s
Type-check benchmarks	13s
Type checking (stable, std_no_offset)	2m 44s
Type checking (stable, std_with_offset)	1m 32s
Documentation	18s
Formatting	14s
Test (miri)	18m 13s
Coverage	1m 16s
Test (Ubuntu, MSRV)	2m 53s
Test (Windows, MSRV)	4m 12s
Test (MacOS, MSRV)	2m 53s
Test (Ubuntu, stable)	1m 7s
Test (Windows, stable)	3m 9s
Test (MacOS, stable)	48s
Publish docs	0s
	52m 46s

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