fix: safe guard coredns and cilium by setting prune to false

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/kubernetes/apps/kube-system/cilium/ks.yaml.j2

@@ -6,7 +6,7 @@ metadata:
   namespace: flux-system
 spec:
   path: ./kubernetes/apps/kube-system/cilium/app
-  prune: true
+  prune: false # never should be deleted
   sourceRef:
     kind: GitRepository
     name: home-kubernetes