Merge pull request github#11969 from hmac/simplify-ruby-dependabot-config

Ruby: Simplify dependabot config

Author: aibaars

.github/dependabot.yml

@@ -1,19 +1,7 @@
 version: 2
 updates:
   - package-ecosystem: "cargo"
-    directory: "ruby/node-types"
-    schedule:
-      interval: "daily"
-  - package-ecosystem: "cargo"
-    directory: "ruby/generator"
-    schedule:
-      interval: "daily"
-  - package-ecosystem: "cargo"
-    directory: "ruby/extractor"
-    schedule:
-      interval: "daily"
-  - package-ecosystem: "cargo"
-    directory: "ruby/autobuilder"
+    directory: "ruby"
     schedule:
       interval: "daily"