Add checks in CI

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: CI Quality checks
+
+on:
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+
+      - name: Install just
+        uses: extractions/setup-just@v1
+
+      - name: Install dependencies
+        run: poetry install
+
+      - name: Run tests
+        run: just test
+
+      - name: Run checks
+        run: just check