improve: facelift samples to use ReconcileUtils #6167

Job	Run time
sample_operators_tests (sample-operators/webpage)	3m 12s
sample_operators_tests (sample-operators/leader-election)	3m 32s
sample_operators_tests (sample-operators/mysql-schema)	5m 38s
sample_operators_tests (sample-operators/tomcat-operator)	3m 4s
sample_operators_tests (sample-operators/mysql-schema)	4m 17s
sample_operators_tests (sample-operators/leader-election)	3m 32s
sample_operators_tests (sample-operators/webpage)	3m 12s
sample_operators_tests (sample-operators/tomcat-operator)	3m 4s
	29m 31s

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