fix: Enable dependabot config

.github/workflows/dependabot.yml

@@ -0,0 +1,31 @@
+version: 2
+updates:
+  - package-ecosystem: "gomod"
+    directory: "/"
+    directories:
+      - "/"
+    schedule:
+      interval: "weekly"
+    groups:
+      k8s:
+        patterns:
+          - "k8s.io*"
+          - "sigs.k8s.io*"
+      all-go-mod-patch-and-minor:
+        patterns: [ "*" ]
+        update-types: [ "patch", "minor" ]
+
+  - package-ecosystem: "gomod"
+    directory: "/tools"
+    schedule:
+      interval: "weekly"
+    groups:
+      all-go-mod-patch-and-minor:
+        patterns: [ "*" ]
+        update-types: [ "patch", "minor" ]
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every week
+      interval: "weekly"