github: add workflows to check formatting and typecheck

.github/workflows/main.yml

@@ -11,10 +11,19 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.10"
 
-      - run: pip install .
-      - run: pip install -U pytest trio
-      - run: pytest
+      - name: Install uv
+        uses: astral-sh/setup-uv@v3
+        with:
+          enable-cache: true
+
+      - name: "Set up Python"
+        uses: actions/setup-python@v5
+        with:
+          python-version-file: ".python-version"
+
+      - name: Install the project
+        run: uv sync --frozen --all-extras --dev
+
+      - name: Run pytest
+        run: uv run --frozen pytest