Configure Dependabot for Composer updates

Updated Dependabot configuration to use Composer and changed update schedule to daily.

Author: Trukes

.github/dependabot.yml

@@ -0,0 +1,11 @@
+version: 2
+updates:
+  - package-ecosystem: "composer"
+    directory: "/" 
+    schedule:
+      interval: "daily"
+    open-pull-requests-limit: 10
+    automerged_updates:
+      # Opcional: auto-merge patch/minor updates after tests pass
+      # cuidado com merges automáticos; só ativa se confiares no CI
+      enable: true