Bump gmavenplus-plugin from 1.12.1 to 1.13.0

Bumps [gmavenplus-plugin](https://github.com/groovy/GMavenPlus) from 1.12.1 to 1.13.0.
- [Release notes](https://github.com/groovy/GMavenPlus/releases)
- [Commits](groovy/GMavenPlus@1.12.1...1.13.0)

---
updated-dependencies:
- dependency-name: org.codehaus.gmavenplus:gmavenplus-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -64,7 +64,7 @@
                 <plugin>
                     <groupId>org.codehaus.gmavenplus</groupId>
                     <artifactId>gmavenplus-plugin</artifactId>
-                    <version>1.12.1</version>
+                    <version>1.13.0</version>
                     <executions>
                         <execution>
                             <goals>