Apply suggestions from code review

Co-authored-by: Ran Benita <[email protected]>

Author: nicoddemus

doc/en/reference.rst

@@ -1020,7 +1020,7 @@ Configuration Options
 ---------------------
 
 Here is a list of builtin configuration options that may be written in a ``pytest.ini``, ``pyproject.toml``, ``tox.ini`` or ``setup.cfg``
-file, usually located at the root of your repository. To see each file format in details, see
+file, usually located at the root of your repository. To see each file format in detail, see
 :ref:`config file formats`.
 
 .. warning::

src/_pytest/config/findpaths.py

@@ -35,7 +35,7 @@ def _parse_ini_config(path: py.path.local) -> py.iniconfig.IniConfig:
         raise UsageError(str(exc))
 
 
-def _get_ini_config_from_pytest_ini(path: py.path.local) -> Optional[Dict[str, Any]]:
+def _get_ini_config_from_pytest_ini(path: py.path.local) -> Optional[Dict[str, Optional[str]]]:
     """Parses and validates a 'pytest.ini' file.
 
     If present, 'pytest.ini' files are always considered the source of truth of pytest
@@ -48,7 +48,7 @@ def _get_ini_config_from_pytest_ini(path: py.path.local) -> Optional[Dict[str, A
         return {}
 
 
-def _get_ini_config_from_tox_ini(path: py.path.local) -> Optional[Dict[str, Any]]:
+def _get_ini_config_from_tox_ini(path: py.path.local) -> Optional[Dict[str, Optional[str]]]:
     """Parses and validates a 'tox.ini' file for pytest configuration.
 
     'tox.ini' files are only considered for pytest configuration if they contain a "[pytest]"
@@ -61,7 +61,7 @@ def _get_ini_config_from_tox_ini(path: py.path.local) -> Optional[Dict[str, Any]
         return None
 
 
-def _get_ini_config_from_setup_cfg(path: py.path.local) -> Optional[Dict[str, Any]]:
+def _get_ini_config_from_setup_cfg(path: py.path.local) -> Optional[Dict[str, Optional[str]]]:
     """Parses and validates a 'setup.cfg' file for pytest configuration.
 
     'setup.cfg' files are only considered for pytest configuration if they contain a "[tool:pytest]"