Update gradle.yml

.github/workflows/gradle.yml

@@ -1,13 +1,6 @@
-# This workflow will build a Java project with Gradle
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
-
 name: Java CI with Gradle
 
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
+on: [ push, pull_request ]
 
 jobs:
   build:
@@ -24,3 +17,8 @@ jobs:
       run: chmod +x gradlew
     - name: Build with Gradle
       run: ./gradlew build
+    - name: Upload build artifacts
+      uses: actions/upload-artifact@v1
+      with:
+        name: build-artifacts
+        path: build/libs