Add PyPy to Python version matrix in GitHub Actions

.github/workflows/uv.yml

@@ -21,7 +21,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "pypy"]
     steps:
     - run: |
           if [ -z "${{ env.BOT_TOKEN }}" ]; then

.vscode/settings.json

@@ -26,6 +26,7 @@
         "pycodestyle",
         "pydocstyle",
         "pyproject",
+        "pypy",
         "PYTHONDONTWRITEBYTECODE",
         "PYTHONUNBUFFERED",
         "pyupgrade",