ci : add bindings-java jar artifact to release

This commit adds the jar artifact from bindings java to the release
process.

Author: danbev

.github/workflows/build.yml

@@ -1120,11 +1120,19 @@ jobs:
           chmod +x ./gradlew
           ./gradlew build --info
 
+      - name: Pack jar artifacts
+        id: pack_artifacts
+        if: ${{ (github.event_name == 'push' && github.ref == 'refs/heads/master') ||
+                github.event.inputs.create_release == 'true' ||
+                github.event.inputs.pre_release_tag != '' }}
+        run: |
+          zip -r whispercpp.jar bindings/java/build/libs/whispercpp-*.jar
+
       - name: Upload jar
         uses: actions/upload-artifact@v4
         with:
           name: whispercpp.jar
-          path: bindings/java/build/libs/whispercpp-*.jar
+          path: whispercpp.jar
 
 #      - name: Publish package
 #        if: ${{ github.ref == 'refs/heads/master' }}