istio-proxy could be added twice in `ContainerResourceRequests`

[sanposhiho]

istio-proxy could be added twice in ContainerResourceRequests if the deployment has the sidecar injection annotation and it's using the custom injection: https://istio.io/latest/docs/setup/additional-setup/sidecar-injection/#customizing-injection

...
  template:
    metadata:
      annotations:
        sidecar.istio.io/inject: "true"
        sidecar.istio.io/proxyCPU: 502m
    spec:
      containers:
      - name: istio-proxy # https://istio.io/latest/docs/setup/additional-setup/sidecar-injection/#customizing-injection
        resources:
          requests:
            cpu: 501m
            memory: 129Mb