Merge pull request #462 from gocd-contrib/dependabot/gradle/org.apach…

…e.groovy-groovy-4.0.21

Bump org.apache.groovy:groovy from 4.0.20 to 4.0.21

dependencies.gradle

@@ -28,7 +28,7 @@ final Map<String, String> libraries = [
   commonsText       : 'org.apache.commons:commons-text:1.11.0',
   dom4j             : 'org.dom4j:dom4j:2.1.4',
   glassfish         : 'org.glassfish:jakarta.el:4.0.2',
-  groovy            : 'org.apache.groovy:groovy:4.0.20',
+  groovy            : 'org.apache.groovy:groovy:4.0.21',
   guava             : 'com.google.guava:guava:33.1.0-jre',
   hibernateValidator: 'org.hibernate.validator:hibernate-validator:8.0.1.Final',
   jacksonCore       : 'com.fasterxml.jackson.core:jackson-core:2.17.0',