dependabot: Update config

Author: Nicklas373

.github/dependabot.yml

@@ -1,24 +1,17 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for all configuration options:
-# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
-
 version: 2
 updates:
-  # Maintain dependencies for GitHub Actions
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: "weekly"
-
-  # Maintain dependencies for npm
+  # Enable version updates for npm
   - package-ecosystem: "npm"
+    # Look for `package.json` and `lock` files in the `root` directory
     directory: "/"
+    # Check the npm registry for updates once a week
     schedule:
       interval: "weekly"
 
-  # Maintain dependencies for Composer
+  # Enable version updates for Docker
   - package-ecosystem: "composer"
+    # Look for a `composer.lock` in the `root` directory
     directory: "/"
+    # Check for updates once a week
     schedule:
       interval: "weekly"