feat: allow overriding test infrastructure kube client separately #5418

Job	Run time
check_format_and_unit_tests	1m 20s
build / Special integration tests (21)	1m 57s
build / Special integration tests (17)	2m 2s
build / Special integration tests (24)	1m 40s
build / integration_tests (21, 1.33.1) / Integration tests (21, 1.33.1, vertx)	23m 7s
build / integration_tests (24, 1.30.12) / Integration tests (24, 1.30.12, vertx)	22m 3s
build / integration_tests (21, 1.32.4) / Integration tests (21, 1.32.4, vertx)	22m 29s
build / integration_tests (24, 1.32.4) / Integration tests (24, 1.32.4, vertx)	22m 48s
build / integration_tests (21, 1.30.12) / Integration tests (21, 1.30.12, vertx)	22m 10s
build / integration_tests (24, 1.31.8) / Integration tests (24, 1.31.8, vertx)	23m 20s
build / integration_tests (17, 1.30.12) / Integration tests (17, 1.30.12, vertx)	22m 10s
build / integration_tests (21, 1.31.8) / Integration tests (21, 1.31.8, vertx)	23m 0s
build / integration_tests (17, 1.32.4) / Integration tests (17, 1.32.4, vertx)	22m 36s
build / integration_tests (17, 1.31.8) / Integration tests (17, 1.31.8, vertx)	23m 9s
build / integration_tests (24, 1.33.1) / Integration tests (24, 1.33.1, vertx)	23m 42s
build / integration_tests (17, 1.33.1) / Integration tests (17, 1.33.1, vertx)	22m 53s
build / httpclient-tests (jdk) / Integration tests (24, 1.32.0, jdk)	22m 9s
build / httpclient-tests (jetty) / Integration tests (24, 1.32.0, jetty)	23m 19s
build / httpclient-tests (vertx) / Integration tests (24, 1.32.0, vertx)	23m 19s
	5h 49m 13s

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