Enable release plugin

Author: karllessard

.github/workflows/ci.yml

@@ -30,3 +30,9 @@ jobs:
         run: |
           echo "<settings><servers><server><id>ossrh</id><username>${{ secrets.CI_DEPLOY_USERNAME }}</username><password>${{ secrets.CI_DEPLOY_PASSWORD }}</password></server></servers></settings>" > $HOME/.m2/settings.xml
           mvn deploy -B -U -e -Dmaven.test.skip=true
+      - name: Release artifacts
+        if: github.event_name == 'push' && startsWith(github.ref, 'r')
+        run: |
+          echo "<settings><servers><server><id>ossrh</id><username>${{ secrets.CI_DEPLOY_USERNAME }}</username><password>${{ secrets.CI_DEPLOY_PASSWORD }}</password></server></servers></settings>" > $HOME/.m2/settings.xml
+          mvn release:prepare -B -U -e
+          mvn release:perform -B -U -e -Dmaven.test.skip=true