Bump org.codehaus.gmavenplus:gmavenplus-plugin from 4.3.0 to 4.3.1 (#1533)

Bumps [org.codehaus.gmavenplus:gmavenplus-plugin](https://github.com/groovy/GMavenPlus) from 4.3.0 to 4.3.1.
- [Release notes](https://github.com/groovy/GMavenPlus/releases)
- [Commits](https://github.com/groovy/GMavenPlus/compare/4.3.0...4.3.1)

---
updated-dependencies:
- dependency-name: org.codehaus.gmavenplus:gmavenplus-plugin
  dependency-version: 4.3.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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