feat: Create dependabot.yml (#757)

Signed-off-by: Joyce <[email protected]>
Co-authored-by: Brett Cannon <[email protected]>

Author: joycebrum

.github/dependabot.yml

@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"
+    groups:
+      github-actions:
+        patterns:
+          - "*"