Option [tool.coverage.run]source is not a list: 'mypy' #16255

py39: commands[0]> python -m pytest
Traceback (most recent call last):
  File "/usr/lib/python3.9/vendor-packages/coverage/config.py", line 308, in from_file
    was_set = self._set_attr_from_config_option(cp, *option_spec)
  File "/usr/lib/python3.9/vendor-packages/coverage/config.py", line 448, in _set_attr_from_config_option
    setattr(self, attr, method(section, option))
  File "/usr/lib/python3.9/vendor-packages/coverage/tomlconfig.py", line 187, in getlist
    _, values = self._get_list(section, option)
  File "/usr/lib/python3.9/vendor-packages/coverage/tomlconfig.py", line 182, in _get_list
    values = self._check_type(name, option, values, list, None, "a list")
  File "/usr/lib/python3.9/vendor-packages/coverage/tomlconfig.py", line 170, in _check_type
    raise ValueError(
ValueError: Option [tool.coverage.run]source is not a list: 'mypy'

--- mypy-1.6.0/pyproject.toml.orig
+++ mypy-1.6.0/pyproject.toml
@@ -105,13 +105,13 @@

 [tool.coverage.run]
 branch = true
-source = "mypy"
+source = ["mypy"]
 parallel = true

 [tool.coverage.report]
 show_missing = true
 skip_covered = true
-omit = 'mypy/test/*'
+omit = ['mypy/test/*']
 exclude_lines = [
   '\#\s*pragma: no cover',
   '^\s*raise AssertionError\b',