Fix task name

Author: koppor

.github/workflows/gradle.yml

@@ -31,7 +31,7 @@ jobs:
         java-version: '25'
         distribution: 'corretto'
     - uses: gradle/actions/setup-gradle@v4
-    - run: ./gradlew jlinkZip
+    - run: ./gradlew jpackage
     - name: Upload a Build Artifact
       uses: actions/upload-artifact@v4
       with: