[40352] Don't remove the API folder

https://community.openproject.org/wp/40352

packaging/teardown

@@ -5,5 +5,6 @@ set -e
 echo "Cleaning up current node_modules folders"
 rm -rf node_modules frontend/node_modules || true
 
-echo "Cleaning up current docs folders"
-rm -rf docs/* || true
+echo "Cleaning up current docs folders except API"
+# We need the api folder for openapi (https://community.openproject.org/work_packages/40352/activity)
+find docs -mindepth 1 -maxdepth 1 -type d -not -name 'api' | xargs rm -rf