Bump gmavenplus-plugin from 1.11.1 to 1.12.0 (#381)

Bumps [gmavenplus-plugin](https://github.com/groovy/GMavenPlus) from 1.11.1 to 1.12.0.
- [Release notes](https://github.com/groovy/GMavenPlus/releases)
- [Commits](groovy/GMavenPlus@1.11.1...1.12.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

pom.xml

@@ -361,7 +361,7 @@
         <plugin>
           <groupId>org.codehaus.gmavenplus</groupId>
           <artifactId>gmavenplus-plugin</artifactId>
-          <version>1.11.1</version>
+          <version>1.12.0</version>
         </plugin>
         <plugin>
           <groupId>org.codehaus.mojo</groupId>