Add dependabot

.github/dependabot.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+  # Enable version updates for Docker
+  - package-ecosystem: "docker"
+    # Look for a `Dockerfile` in the `root` directory
+    directory: "/"
+    # Check for updates once a week
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: weekly