Bump groovy from 3.0.4 to 3.0.6

Bumps [groovy](https://github.com/apache/groovy) from 3.0.4 to 3.0.6.
- [Release notes](https://github.com/apache/groovy/releases)
- [Commits](https://github.com/apache/groovy/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

pom.xml

@@ -263,7 +263,7 @@
               <dependency>
                 <groupId>org.codehaus.groovy</groupId>
                 <artifactId>groovy</artifactId>
-                <version>3.0.4</version>
+                <version>3.0.6</version>
               </dependency>
               <dependency>
                 <groupId>org.codehaus.gmaven.runtime</groupId>