fix(ApisixRoute): failed to delete stream_route

[AlinsRan]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches
• Documentation
• Refactor
• Chore
• CI/CD or Tests

What this PR does / why we need it:

helm install -n ingress-apisix apisix apisix/apisix \
  --namespace ingress-apisix \
  --create-namespace \
  --set apisix.deployment.role=traditional \
  --set apisix.deployment.role_traditional.config_provider=yaml \
  --set etcd.enabled=false \
  --set ingress-controller.enabled=true \
  --set ingress-controller.config.provider.type=apisix-standalone \
  --set ingress-controller.apisix.adminService.namespace=ingress-apisix \
  --set ingress-controller.gatewayProxy.createDefault=true \
  --set "service.stream.enabled=true" \
  --set "service.stream.tcp[0]=9100"

kubectl apply:

apiVersion: apisix.apache.org/v2
kind: ApisixRoute
metadata:
  name: stream-route-httpbin
spec:
  ingressClassName: apisix
  stream:
    - name: stream-route-httpbin
      protocol: TCP
      match:
        ingressPort: 9100
      backend:
        serviceName: httpbin
        servicePort: 80

expect stream-route-httpbin deleted.

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first