K8sGRPCRoute updated to released v1

[hhovsepy]

Describe the change

Explanation of what this PR does
K8sGRPCRoute is updated to v1 which comes with K8s GW API v1.1.0 CRDs.

Steps to test the PR

• Apply K8s GW CRDs v1.1.0. kubectl apply -k "github.com/kubernetes-sigs/gateway-api/config/crd/experimental?ref=v1.1.0"
• Create GRPCRoute v1alpha2:

apiVersion: gateway.networking.k8s.io/v1alpha2
kind: GRPCRoute
metadata:
  name: example-route
spec:
  parentRefs:
  - name: example-gateway
  hostnames:
  - "example.com"
  rules:
  - backendRefs:
    - name: example-svc
      port: 50051

• Load Kiali. Make sure that GRPCRoute created loading fine in Kiali Istio Config YAML editor. It should change it to v1.
• Update/View/Delete the GRPCRoute, it should work fine.

Automation testing

Existing cypress and e2e tests are updated to support v1 in v1.1.0.

Issue reference

#7355

Blocked by #7359

[ferhoyos]

LGTM. I view the GRPCRoute example and I am able to update and delete it.

[jshaughn]

No problems, looks good to me!

[jshaughn]

Merging as the CI issue is a known flake.