policy(feat): `GrpcRoute` index support #4379

Job	Run time
meta	17s
build-cli	2m 31s
info	1s
build-ext (jaeger-webhook)	2m 18s
build-core (controller)	2m 16s
build-ext (metrics-api)	2m 11s
build-core (policy-controller)	5m 46s
build-ext (tap)	2m 8s
build-core (proxy)	2m 4s
build-ext (web)	4m 17s
test-policy (v1.22)	10m 12s
test-policy (v1.29)	9m 21s
build-ok	1s
test-ext (cluster-domain)	3m 30s
test-core (cni-calico-deep)	3m 43s
test-ext (default-policy-deny)	3m 52s
test-viz	0s
test-core (deep)	3m 46s
test-ext (external)	5m 17s
test-core (deep-native-sidecar)	3m 43s
test-ext (rsa-ca)	2m 57s
test-multicluster	0s
test-ext (helm-upgrade)	5m 5s
test-ext (uninstall)	3m 28s
test-ext (upgrade-edge)	4m 52s
integrations-ok	1s
integrations-retry	0s
	1h 23m 37s

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