Re-enable `unexpected_cfgs` #28

Job	Run time
check (1.60.0, windows-latest)	1m 45s
check (1.60.0, ubuntu-latest)	1m 26s
check (stable, windows-latest)	1m 6s
check (stable, ubuntu-latest)	14s
check (nightly, windows-latest)	32s
check (nightly, ubuntu-latest)	20s
	5m 23s

Provide feedback