Bump org.codehaus.gmavenplus:gmavenplus-plugin from 4.2.0 to 4.2.1 (#4886)

Bumps [org.codehaus.gmavenplus:gmavenplus-plugin](https://github.com/groovy/GMavenPlus) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/groovy/GMavenPlus/releases)
- [Commits](https://github.com/groovy/GMavenPlus/compare/4.2.0...4.2.1)

---
updated-dependencies:
- dependency-name: org.codehaus.gmavenplus:gmavenplus-plugin
  dependency-version: 4.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

bundles/org.openhab.core.semantics/pom.xml

@@ -47,7 +47,7 @@
           <plugin>
             <groupId>org.codehaus.gmavenplus</groupId>
             <artifactId>gmavenplus-plugin</artifactId>
-            <version>4.2.0</version>
+            <version>4.2.1</version>
             <dependencies>
               <dependency>
                 <groupId>org.apache.groovy</groupId>