Update maven-publish.yml

Author: manleviet

.github/workflows/maven-publish.yml

@@ -31,6 +31,10 @@ jobs:
     - name: Build with Maven
       run: mvn -B package --file pom.xml
 
+    - uses: actions/delete-package-versions@v1
+      with:
+        num-old-versions-to-delete: 1
+
     - name: Publish to GitHub Packages Apache Maven
       run: mvn deploy -s $GITHUB_WORKSPACE/settings.xml
       env: