name: Publish package to the Maven Central Repository
on:
  release:
    types: [created]
jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Set up Maven Central Repository
        uses: actions/setup-java@v2
        with:
          java-version: '11'
          distribution: 'adopt'
          server-id: ossrh
          server-username: MAVEN_USERNAME
          server-password: MAVEN_PASSWORD
      - name: Publish package
        run: mvn --batch-mode deploy
        env:
          MAVEN_USERNAME: ${{ secrets.OSSRH_USERNAME }}
          MAVEN_PASSWORD: ${{ secrets.OSSRH_TOKEN }}

Add the workflow job to publish to maven central
Add the workflow job to publish to maven central

(Based on https://docs.github.com/en/actions/publishing-packages/publishing-java-packages-with-maven)
