Add Dependabot configuration for automated dependency updates

Configure Dependabot to automatically update Composer dependencies and GitHub Actions on a weekly schedule (Tuesdays at 9 AM Europe/Rome).

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: fain182

.github/dependabot.yml

@@ -0,0 +1,24 @@
+version: 2
+updates:
+  - package-ecosystem: "composer"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "tuesday"
+      time: "09:00"
+      timezone: "Europe/Rome"
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: "deps"
+      include: "scope"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "tuesday"
+      time: "09:00"
+      timezone: "Europe/Rome"
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: "ci"
+      include: "scope"