chore(dependabot): exclude k8s deps from updates

This change will prevent automatically diverging from the opendatahub-operator project as we want to be consumed as dependency there.

.github/dependabot.yml

@@ -5,6 +5,10 @@ updates:
     schedule:
       interval: "weekly"
     rebase-strategy: "disabled"
+    # To be aligned with opendatahub-operator codebase these dependencies are ignored for now
+    ignore:
+      - dependency-name: "sigs.k8s.io/controller-runtime"
+      - dependency-name: "k8s.io/*"
     reviewers:
       - aslakknutsen
       - bartoszmajsak