feat: add getPlural method on GroupVersionKind #4756

Job	Run time
check_format_and_unit_tests	1m 12s
special_integration_tests (11)	1m 44s
special_integration_tests (17)	2m 8s
httpclient-tests (jdk) / integration_tests	18m 47s
httpclient-tests (jetty) / integration_tests	19m 39s
httpclient-tests (vertx) / integration_tests	19m 22s
integration_tests (11, 1.30.3) / integration_tests	19m 21s
integration_tests (11, 1.31.0) / integration_tests	20m 19s
integration_tests (11, v1.28.12) / integration_tests	19m 21s
integration_tests (17, 1.30.3) / integration_tests	18m 50s
integration_tests (11, v1.29.7) / integration_tests	19m 16s
integration_tests (17, 1.31.0) / integration_tests	20m 17s
integration_tests (17, v1.28.12) / integration_tests	18m 55s
integration_tests (17, v1.29.7) / integration_tests	18m 50s
	3h 38m 1s

Provide feedback