Upgrade to Groovy 4.0.31

Closes gh-1421

Author: rainboyan

gradle/libs.versions.toml

@@ -24,7 +24,7 @@ grace-doc-engine = "2.0.0"
 gradle = "8.14.4"
 gradle-git-properties = "2.5.7"
 gradle-plugin-publish = "2.1.1"
-groovy = "4.0.30"
+groovy = "4.0.31"
 gson = "2.13.2"
 h2 = "2.3.232"
 hsqldb = "2.7.3"