Merge pull request #1802 from serlo/refactor/dependabot

refactor: simplify dependabot.yml

.github/dependabot.yml

@@ -2,31 +2,18 @@
 
 version: 2
 updates:
-  # repetitive because unfortunately Dependabot ticket for wildcard support still open:
-  # https://github.com/dependabot/dependabot-core/issues/2178
   - package-ecosystem: 'npm'
-    directory: '/'
-    schedule:
-      interval: 'weekly'
-  - package-ecosystem: 'npm'
-    directory: 'packages/authorization'
-    schedule:
-      interval: 'weekly'
-  - package-ecosystem: 'npm'
-    directory: 'packages/server'
+    directories:
+      - '/'
+      - 'packages/authorization'
+      - 'packages/server'
     schedule:
       interval: 'weekly'
 
   - package-ecosystem: 'docker'
-    directory: 'packages/server/docker/server'
-    schedule:
-      interval: 'weekly'
-    # we want LTS version of NodeJS and not suggested current version
-    ignore:
-      - dependency-name: 'node'
-        update-types: ['version-update:semver-major']
-  - package-ecosystem: 'docker'
-    directory: 'packages/server/docker/swr-queue-worker'
+    directories:
+      - 'packages/server'
+      - 'packages/db-migrations'
     schedule:
       interval: 'weekly'
     # we want LTS version of NodeJS and not suggested current version