Re-enable `unexpected_cfgs` #27

Job	Run time
check (1.60.0, windows-latest)	1m 41s
check (1.60.0, ubuntu-latest)	1m 30s
check (stable, windows-latest)	1m 26s
check (stable, ubuntu-latest)	10s
check (nightly, windows-latest)	27s
check (nightly, ubuntu-latest)	17s
	5m 31s

Provide feedback