Upgrade to Gradle Tooling API 8.12

Closes gh-849

Author: rainboyan

gradle/libs.versions.toml

@@ -11,7 +11,7 @@ commons-lang = "2.6"
 commons-lang3 = "3.13.0"
 commons-text = "1.13.0"
 glassfish-web-jsp-jstl = "3.0.1"
-gradle = "8.11.1"
+gradle = "8.12"
 gradle-git-properties = "2.4.2"
 grace-async = "6.2.0-M1"
 grace-events = "6.2.0-M1"