Add tests to pull request

.github/workflows/test.yml

@@ -0,0 +1,19 @@
+name: Test
+
+on: pull_request
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v2
+
+      - name: Run tests
+        run: uv run --frozen --python 3.13 pytest