chore: add GitHub Actions workflow for automated testing

- Created a new workflow file (.github/workflows/test.yml) to automate testing on push and pull request events to the main branch.
- Configured the workflow to set up Python, install dependencies, and run tests using pytest.

.github/workflows/test.yml

@@ -0,0 +1,27 @@
+name: Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: '3.x'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+          pip install pytest
+          
+      - name: Run tests
+        run: pytest tests/