Description:
When configuring the rate limit deployment through the envoy-gateway-config configmap, the provider.kubernetes.rateLimitDeployment.pod.labels field is ignored.
Other fields at the same level like annotations are respected.

Repro steps:

• gateway v1.1 (experimental channel)

• envoy-gateway installed through helm chart v0.0.0-latest

• create GatewayClass with envoy controller.

• Update envoy-gateway-config configmap in envoy-gateway-system namespace with the following values:

  apiVersion: v1
  kind: ConfigMap
  metadata:
    name: envoy-gateway-config
    namespace: envoy-gateway-system
  data:
    envoy-gateway.yaml: |
      apiVersion: gateway.envoyproxy.io/v1alpha1
      kind: EnvoyGateway
      provider:
        type: Kubernetes
        kubernetes:
          rateLimitDeployment:
            replicas: 4
            pod:
              labels:
                my-label: test
              annotations:
                test-anno: test
      gateway:
        controllerName: gateway.envoyproxy.io/gatewayclass-controller
      rateLimit:
        backend:
          type: Redis
          redis:
            url: redis.redis-system.svc.cluster.local:6379
        telemetry:
          metrics:
            prometheus:
              disable: false
          
        
  ```
  

• Rollout restart envoy-gateway deployment for it to pick up the changes.

• Deployment envoy-ratelimit has the annotation test-anno: test in the pod spec, but not the label my-label: test

Environment:

• gateway v1.1 (experimental channel)
• envoy-gateway installed through helm chart v0.0.0-latest
• image gw controller: docker.io/envoyproxy/gateway-dev:latest