feat: allow overriding test infrastructure kube client separately #5417

Job	Run time
check_format_and_unit_tests	1m 17s
build / Special integration tests (24)	1m 45s
build / Special integration tests (21)	1m 54s
build / Special integration tests (17)	1m 46s
build / integration_tests (21, 1.31.8) / Integration tests (21, 1.31.8, vertx)	4m 47s
build / integration_tests (17, 1.33.1) / Integration tests (17, 1.33.1, vertx)	4m 46s
build / integration_tests (21, 1.32.4) / Integration tests (21, 1.32.4, vertx)	4m 43s
build / integration_tests (24, 1.30.12) / Integration tests (24, 1.30.12, vertx)	4m 43s
build / integration_tests (24, 1.31.8) / Integration tests (24, 1.31.8, vertx)	4m 47s
build / integration_tests (24, 1.32.4) / Integration tests (24, 1.32.4, vertx)	4m 47s
build / integration_tests (17, 1.31.8) / Integration tests (17, 1.31.8, vertx)	4m 46s
build / integration_tests (17, 1.30.12) / Integration tests (17, 1.30.12, vertx)	4m 42s
build / integration_tests (24, 1.33.1) / Integration tests (24, 1.33.1, vertx)	4m 45s
build / integration_tests (21, 1.33.1) / Integration tests (21, 1.33.1, vertx)	4m 47s
build / integration_tests (21, 1.30.12) / Integration tests (21, 1.30.12, vertx)	4m 47s
build / integration_tests (17, 1.32.4) / Integration tests (17, 1.32.4, vertx)	4m 48s
build / httpclient-tests (jetty) / Integration tests (24, 1.32.0, jetty)	4m 48s
build / httpclient-tests (jdk) / Integration tests (24, 1.32.0, jdk)	4m 42s
build / httpclient-tests (vertx) / Integration tests (24, 1.32.0, vertx)	4m 45s
	1h 18m 5s

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