Add pytest workflow

.github/workflows/pytest.yml

@@ -0,0 +1,31 @@
+name: pytest
+
+on:
+  push:
+    branches:
+      - "**"
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+          cache: pip
+          cache-dependency-path: |
+            requirements.txt
+            dev-requirements.txt
+
+      - name: Install dependencies
+        run: python -m pip install -r dev-requirements.txt
+
+      - name: Run pytest
+        run: python -m pytest