feat: add feature switch to use SSA for managing finalizer #5268

Job	Run time
sample_operators_tests (sample-operators/leader-election)	16s
sample_operators_tests (sample-operators/webpage)	23s
sample_operators_tests (sample-operators/mysql-schema)	20s
sample_operators_tests (sample-operators/tomcat-operator)	22s
sample_operators_tests (sample-operators/mysql-schema)	39s
sample_operators_tests (sample-operators/webpage)	35s
sample_operators_tests (sample-operators/leader-election)	46s
sample_operators_tests (sample-operators/tomcat-operator)	45s
sample_operators_tests (sample-operators/tomcat-operator)	2m 44s
sample_operators_tests (sample-operators/mysql-schema)	2m 48s
sample_operators_tests (sample-operators/webpage)	3m 49s
sample_operators_tests (sample-operators/leader-election)	7m 1s
	20m 28s

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