ci: add Python SDK unit test workflow

Runs pytest on sdk-python/ for pushes and PRs that touch the Python SDK.

Author: Jordan Ritter

.github/workflows/test_unit-python-sdk.yml

@@ -0,0 +1,39 @@
+name: test / unit / python-sdk
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "sdk-python/**"
+      - ".github/workflows/test_unit-python-sdk.yml"
+  pull_request:
+    branches: [main]
+    paths:
+      - "sdk-python/**"
+      - ".github/workflows/test_unit-python-sdk.yml"
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
+        with:
+          version: latest
+          virtualenvs-create: true
+          virtualenvs-in-project: true
+
+      - name: Install dependencies
+        working-directory: sdk-python
+        run: poetry install
+
+      - name: Run tests
+        working-directory: sdk-python
+        run: poetry run python -m pytest tests/ -v