feat: allow reconcilers to override their own configuration #5123

Job	Run time
sample_operators_tests (sample-operators/mysql-schema)	2m 47s
sample_operators_tests (sample-operators/webpage)	3m 1s
sample_operators_tests (sample-operators/tomcat-operator)	3m 6s
sample_operators_tests (sample-operators/leader-election)	3m 29s
	12m 23s

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