refactor!(validation): make it stricter to reflect the new API #869

Job	Run time
dco / check	4s
reuse / test	8s
warmup-caches / stable / build	2m 31s
multi-platform / windows-latest / stable / test	4m 41s
e2e-test / e2e-test	5m 59s
warmup-caches / beta / build	2m 30s
warmup-caches / nightly / build	2m 21s
test / ubuntu / stable / coverage	2m 38s
check / stable / clippy	1m 52s
test / ubuntu / beta	2m 35s
check / stable / fmt	15s
check / ubuntu / stable / features	6m 27s
check / nightly / doc	1m 31s
test / ubuntu / stable	2m 29s
check / ubuntu / stable / minimal-versions	4m 0s
check / ubuntu / 1.78	1m 46s
check / stable / for-publish	1m 40s
check / beta / clippy	1m 47s
check / stable / semver	0s
	45m 14s

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