运行 coverage 时的 ModuleNotFoundError run -m pytest 。在 GitHub Actions 中

问：

我有一个非常简单的项目，如下所示

//
├─ src/
│  ├─ sample/
│  │  ├─ __init__.py
│  │  ├─ simple.py
├─ tests/
│  ├─ __init__.py
│  ├─ test_simple.py

当我尝试在本地笔记本电脑上运行下面的 coverage 命令时，它运行正常并生成coverage.xml

coverage run -m pytest . && coverage xml

但是当我使用下面的配置在 GitHub 操作中运行时，它会返回错误

    - uses: actions/setup-python@v4
      with:
        python-version: '3.11' 

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install pytest coverage

    - name: Run test
      run: |
        coverage run -m pytest .
        coverage xml

错误如下

Run coverage run -m pytest .
============================= test session starts ==============================
platform linux -- Python 3.11.6, pytest-7.4.3, pluggy-1.3.0
rootdir: /home/runner/work/openapi-splitter/openapi-splitter
collected 0 items / 1 error

==================================== ERRORS ====================================
____________________ ERROR collecting tests/test_simple.py _____________________
ImportError while importing test module '/home/runner/work/openapi-splitter/openapi-splitter/tests/test_simple.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/opt/hostedtoolcache/Python/3.11.6/x64/lib/python3.11/importlib/__init__.py:126: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
tests/test_simple.py:7: in <module>
    from sample.simple import add_one
E   ModuleNotFoundError: No module named 'sample'
=========================== short test summary info ============================
ERROR tests/test_simple.py
!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!
=============================== 1 error in 0.11s ===============================

为什么会发生这种情况以及如何解决此问题？