Enable dependabot (#254)

Signed-off-by: Andy Goldstein <[email protected]>

Author: ncdc

.github/dependabot.yml

@@ -0,0 +1,17 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    commit-message:
+      prefix: ":seedling:"
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    commit-message:
+      prefix: ":seedling:"
+    ignore:
+      - dependency-name: "k8s.io/*"
+      - dependency-name: "sigs.k8s.io/controller-runtime"