Also update Github workflow to deployment via Central Portal

Author: bertfrees

.github/workflows/main.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           java-version: '8'
           distribution: 'adopt'
-          server-id: sonatype-nexus
+          server-id: sonatype-central
           server-username: MAVEN_USERNAME
           server-password: MAVEN_PASSWORD
           gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
@@ -27,15 +27,15 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-maven-
       - name: Build and test
-        run: mvn --batch-mode -Pstaged-releases clean verify
+        run: mvn --batch-mode clean verify
       - name: Store any log files if tests failed
         if: failure()
         uses: actions/upload-artifact@v2
         with:
           path: target/it/**/build.log
       - name: Deploy to Sonatype
         # Note that this also deploys snapshots
-        run: mvn --batch-mode -Pstaged-releases clean -DskipTests -Dinvoker.skip=true -Psonatype-oss-release verify org.sonatype.plugins:nexus-staging-maven-plugin:1.6.8:deploy -DnexusUrl=https://oss.sonatype.org/ -DserverId=sonatype-nexus -DkeepStagingRepositoryOnCloseRuleFailure=true
+        run: mvn --batch-mode clean -DskipTests -Dinvoker.skip=true -Psonatype-release verify org.sonatype.central:central-publishing-maven-plugin:0.8.0:publish -DpublishingServerId=sonatype-central -DautoPublish=true
         env:
           MAVEN_USERNAME: ${{ secrets.SONATYPE_USERNAME }}
           MAVEN_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}