ci: add tests workflow

.github/workflows/tests.yaml

@@ -0,0 +1,21 @@
+name: Run Tests
+
+on: push
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Create .env file
+        run: cat env.* > .env
+      - name: Load .env file
+        uses: xom9ikk/dotenv@v2
+      - name: Set up Python 3.11
+        uses: ruby/setup-python@v5
+        with:
+          python-version: 3.11
+          cache: poetry
+      - run: poetry install
+      - name: Run tests
+        run: poetry run pytest