GitHub Actions Workflow Checks Out to Subdirectory Instead of Workspace Directory

I'm using GitHub Actions to run tests on my Python project. I'm trying to checkout my repository directly into the runner's workspace directory (/home/runner/work/my_repo) instead of a subdirectory (/home/runner/work/my_repo/my_repo).

Here's the relevant part of my workflow file:

name: Run testson: [push, workflow_call]env:  PYTHON_VERSION: '3.9'jobs:  test:    runs-on: ubuntu-latest    steps:    - name: Checkout      uses: actions/checkout@v2      with:        path: .    - name: Set up Python      uses: actions/setup-python@v2      with:        python-version: 3.9    - name: Install dependencies      run: |        python -m pip install --upgrade pip        pip install .        pip install pytest        pip install pytest-mock    - name: Run tests

When I run this workflow, the repository is checked out into a subdirectory named after the repository (/home/runner/work/my_repo/my_repo), not into the runner's workspace directory (/home/runner/work/my_repo) and this causes pytest to not find any tests.

I've tried setting the path parameter to . in the actions/checkout@v2 action to checkout the repository into the runner's workspace directory, but this didn't work.

Does anyone know how I can checkout my repository directly into the runner's workspace directory in a GitHub Actions workflow?