Initial attempt to set up actions

.github/workflows/test.yml

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+name: Test the examples code for the git lesson
+on: push
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.13.1
+      - name: Install dependencies
+        run: pip install -vv pytest
+      - name: Run test
+        run: pytest -v -s --color=yes test.py
+

broken_python.py

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+def add_one(x : int) -> int:
+    return x + 2

test.py

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+
+def test_add_one():
+    from broken_python import add_one
+
+    assert add_one(1) == 2