Add quarkus-db-scheduler repository to playbook (#283)

Author: gastaldi

antora-playbook.yml

@@ -84,6 +84,9 @@ content:
     - url: https://github.com/quarkiverse/quarkus-dashbuilder.git
       branches: HEAD
       start_path: docs
+    - url: https://github.com/quarkiverse/quarkus-db-scheduler.git
+      branches: HEAD
+      start_path: docs
     - url: https://github.com/quarkiverse/quarkus-discord4j.git
       branches: HEAD
       start_path: docs