refactor: remove the use of knownResourceVersions #5693

Job	Run time
sample_operators_tests (sample-operators/tomcat-operator)	7m 23s
sample_operators_tests (sample-operators/mysql-schema)	3m 33s
sample_operators_tests (sample-operators/webpage)	3m 42s
sample_operators_tests (sample-operators/leader-election)	3m 29s
	18m 7s

Provide feedback