chore: add github-automation config (auto-merge enabled) (#40)

Adds `github-automation` section to project.yml with auto-merge enabled.
Workflow update PRs will be automatically merged when CI passes.

Co-authored-by: cuioss-release-bot <action@github.com>

Author: cuioss-oliver

.github/project.yml

@@ -23,3 +23,6 @@ sonar:
 pages:
   reference: cui-java-module-template
   deploy-at-release: true
+github-automation:
+  auto-merge-build-versions: true
+  auto-merge-build-timeout: 240