Re-enable `unexpected_cfgs` #32

Job	Run time
check (1.60.0, windows-latest)	1m 37s
check (1.60.0, ubuntu-latest)	1m 35s
check (stable, windows-latest)	1m 14s
check (stable, ubuntu-latest)	14s
check (nightly, windows-latest)	33s
check (nightly, ubuntu-latest)	20s
	5m 33s

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