Add GitHub Actions for running tests 🧪

- Created `.github/workflows/test.yml` file.
- Configured testing on push events.
- Added job matrix for Ubuntu, macOS, and Windows.
- Integrated steps for `poetry` setup and `pytest` execution.

Author: horta

.github/workflows/test.yml

@@ -0,0 +1,18 @@
+name: 🧪 Testing
+
+on: push
+
+jobs:
+  test:
+    runs-on: ${{matrix.os}}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Run tests
+        run: |
+          pipx run poetry install
+          pipx run poetry run pytest