Update dependabot.yml

Author: sapjax

.github/dependabot.yml

@@ -8,7 +8,7 @@ updates:
   - package-ecosystem: "npm" # See documentation for possible values
     directory: "/" # Location of package manifests
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     # Create a group of dependencies to be updated together in one pull request
     groups:
        # Specify a name for the group, which will be used in pull request titles and branch names