Python: Don't install nox

We don't use it anymore

Author: tronical

.github/workflows/python_test_reusable.yaml

@@ -49,7 +49,6 @@ jobs:
                   python-version: "3.12"
             - name: Install uv
               uses: astral-sh/setup-uv@v7
-            - uses: fjwillemsen/[email protected]
             - name: Build and sync environment
               working-directory: api/python/slint
               run: uv sync