Update the latest release version 2.12.1 in documentation

Author: quarkiverse-ci[bot]

docs/modules/ROOT/pages/includes/attributes.adoc

@@ -1,5 +1,5 @@
 :quarkus-version: 3.27.0
-:quarkus-github-app-version: 2.12.0
+:quarkus-github-app-version: 2.12.1
 
 :github-api-javadoc-root-url: https://github-api.kohsuke.org/apidocs/org/kohsuke/github
 :github-reference-documentation-root-url: https://docs.github.com/en/free-pro-team@latest/developers