Update stub_uploader tests command (#16360)

Source: typeshed-internal/stub_uploader#231

Author: donbarbos

.github/workflows/tests.yml

@@ -267,4 +267,4 @@ jobs:
       - name: Run tests
         run: |
           cd stub_uploader
-          uv run --python=3.13 --no-project --with-requirements=requirements.txt -m pytest tests
+          uv run --python=3.13 --group dev -m pytest tests