ci: use uv instead of tox

.github/workflows/python-package.yml

@@ -16,12 +16,17 @@ jobs:
 
     steps:
       - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v2
+        with:
+          enable-cache: true
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5
-        with:
-          python-version: ${{ matrix.python-version }}
-      - name: Install Tox and any other packages
-        run: pip install tox
-      - name: Run Tox
-        # Run tox using the version of Python in `PATH`
-        run: tox
+
+      - name: Install the project
+        run: uv sync --all-extras --dev
+
+      - name: Run tests
+        run: uv run pytest tests
+      - name: Run flake8
+        run: uv run flake8 sked_parser tests