Add a reusable workflow for Python tests

* Define a new GitHub Actions workflow for running Python tests
* Trigger the workflow on push and pull request events to the main and releases branches
* Use the starter workflow for Python tests with Python version 3.10

.github/workflows/python-test.yml

@@ -0,0 +1,16 @@
+name: Python Tests
+
+on:
+  push:
+    branches:
+      - main
+      - 'releases/**'
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    uses: actions/starter-workflows/.github/workflows/python-tests.yml@main
+    with:
+      python-version: '3.10'