list artifacts for macos

Author: sbordeyne

.github/workflows/build.yml

@@ -39,6 +39,8 @@ jobs:
       - name: Test
         working-directory: ./build/src/Release
         run: ../../../LuaJIT/src/luajit -l "https" ../../../example/test.lua
+      - name: list artifacts
+        run: ls -l build/src
       - name: Artifact
         if: always()
         uses: actions/upload-artifact@v3