Update apiVersions of webhook rule #2490

Job	Run time
cleanup	4s
changed-viz	19s
tag	10s
changed-policy	15s
changed-multicluster	14s
build-cli	5m 29s
build-core (cni-plugin)	4m 13s
build-core (controller)	4m 44s
build-core (policy-controller)	11m 50s
build-core (proxy)	3m 35s
build-ext (jaeger-webhook)	4m 24s
build-ext (metrics-api)	4m 12s
build-ext (tap)	4m 32s
build-ext (web)	6m 43s
test-core (cni-calico-deep)	6m 28s
test-core (deep)	5m 55s
test-policy (v1.21)	13m 20s
test-policy (v1.26)	12m 1s
test-viz	0s
test-ext (cluster-domain)	6m 25s
test-ext (default-policy-deny)	5m 40s
test-ext (external)	6m 10s
test-ext (rsa-ca)	3m 55s
test-ext (helm-upgrade)	7m 48s
test-ext (uninstall)	4m 37s
test-ext (upgrade-edge)	7m 15s
test-ext (upgrade-stable)	6m 15s
test-multicluster	0s
	2h 16m 33s

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