ci: add dependabot workflow for automatically updating github actions (#299)

Co-authored-by: Ayoub Faouzi <[email protected]>

Author: ayoubfaouzi

.github/dependabot.yaml

@@ -0,0 +1,10 @@
+version: 2
+updates:
+  # Monitor GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    labels:
+      - "dependencies"
+      - "github-actions"