Incorrect default kustomize manifests

[buraksekili]

Besides the issues in the control plane container (with fixes being merged in #313, there are also minor issues in the current Kustomize files:

1. Outdated kube-rbac-proxy image in the control plane

   • The control plane uses the outdated gcr.io/kubebuilder/kube-rbac-proxy:v0.13.0 image (reference).
   • Considering that the control plane is now actively being developed in Rust, this proxy might no longer be necessary. These manifests looks like the leftovers from kubebuilder scaffolding.

2. Incorrect binary name in default manifests

   • The default manifests in config/ point to an incorrect binary name

     blixt/config/manager/manager.yaml

     Line 38 in 0858e92

     - /manager

   • The correct binary name should be /workspace/manager, (as per fix: update Containerfile.controlplane to include the correct binary and run as non-root #313).

3. Incorrect ports in the data plane configuration

   • The data plane manifest specifies incorrect ports

     blixt/config/dataplane/dataplane.yaml

     Lines 39 to 49 in 0858e92

     	port: 9874
     	failureThreshold: 30
     	periodSeconds: 10
     	livenessProbe:
     	grpc:
     	port: 9874
     	initialDelaySeconds: 5
     	periodSeconds: 5
     	readinessProbe:
     	grpc:
     	port: 9874

   • The ports should be updated to 9875 instead of 9874.