chore: enable dependabot version updates (fleet rollout)

Author: 4444J99

.github/dependabot.yml

@@ -0,0 +1,20 @@
+version: 2
+updates:
+  - package-ecosystem: "npm"
+    directories:
+      - "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 3
+    groups:
+      npm-deps:
+        patterns: ["*"]
+  - package-ecosystem: "github-actions"
+    directories:
+      - "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 3
+    groups:
+      github-actions-deps:
+        patterns: ["*"]