ci(renovate): Add kubernetes updates for DNS project

This patch will enable Kubernetes updates, which should enable automatic
updates for the DNS container appp on the k8s01 cluster.

renovate.json

@@ -12,6 +12,9 @@
   "flux": {
     "fileMatch": ["\\.yaml$"]
   },
+  "kubernetes": {
+    "fileMatch": ["\apps/k8s01/dns/.+\.yaml$"]
+  },
   "regexManagers": [
   {
       "fileMatch": ["\\.yaml$"],