fix(compat): restore junit5 compatibility to LocallyRunOperatorExtens… #7052

Job	Run time
sample_operators_tests (sample-operators/mysql-schema)	2m 32s
sample_operators_tests (sample-operators/leader-election)	3m 17s
sample_operators_tests (sample-operators/tomcat-operator)	2m 42s
sample_operators_tests (sample-operators/webpage)	3m 9s
sample_operators_tests (sample-operators/operations)	8m 38s
	20m 18s

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