Fix artifact pattern in github workflow

Author: neziw

.github/workflows/gradle.yml

@@ -41,4 +41,4 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: FlappyBird
-          path: 'build/libs/FlappyBird *.jar'
+          path: 'build/libs/FlappyBird-*.jar'