[ci] add pytest workflow

.forgejo/workflows/test.yml

@@ -0,0 +1,17 @@
+on: [push]
+jobs:
+  build-uberjar:
+    runs-on: docker
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install poetry
+        run: pipx install poetry
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+          cache: 'poetry'
+
+      - run: poetry install
+      - run: poetry run pytest