debug: use absolute path for upload-artifact

.github/workflows/ci.yml

@@ -61,7 +61,7 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: mcpedia-web-build
-          path: apps/web/.next
+          path: ${{ github.workspace }}/apps/web/.next
           retention-days: 1
 
   deploy: