ci: bring the dependencies check back #1481

Job	Run time
filter	1m 9s
downstream-compatibility (spring-cloud-gcp)	11m 9s
downstream-compatibility (java-pubsublite)	5m 14s
downstream-compatibility (java-pubsub)	4m 13s
downstream-compatibility (java-firestore)	4m 23s
downstream-compatibility (java-bigtable)	8m 44s
conditional-required-check	4s
	34m 56s

Provide feedback