Migrate dependabot.yml from haskell/actions

Author: andreasabel

.github/dependabot.yml

@@ -13,23 +13,7 @@ updates:
   # Enable version updates for npm
   - package-ecosystem: "npm"
     # Look for `package.json` and `lock` files in the action's `root` directory
-    directory: "/setup"
-    # Check the npm registry for updates every day (weekdays)
-    schedule:
-      interval: "monthly"
-
-  # Enable version updates for npm
-  - package-ecosystem: "npm"
-    # Look for `package.json` and `lock` files in the action's `root` directory
-    directory: "/hlint-setup"
-    # Check the npm registry for updates every day (weekdays)
-    schedule:
-      interval: "monthly"
-
-  # Enable version updates for npm
-  - package-ecosystem: "npm"
-    # Look for `package.json` and `lock` files in the action's `root` directory
-    directory: "/hlint-run"
+    directory: "/"
     # Check the npm registry for updates every day (weekdays)
     schedule:
       interval: "monthly"