Custom plugins with required options break CLI parsing when using pytest.main()

[x] a detailed description of the bug or problem you are having When running pytest via pytest.main(), plugins which add a required options no longer parse their options correctly. This doesn't happen when using pytest script as the runner

[x] output of pip list from the virtual environment you are using

Package        Version
-------------- -------
attrs          23.1.0
exceptiongroup 1.1.2
iniconfig      2.0.0
packaging      23.1
pip            21.2.4
pluggy         1.2.0
py             1.11.0
pytest         7.4.0
setuptools     58.1.0
toml           0.10.2
tomli          2.0.1

[x] pytest and operating system versions Python 3.9.9, Ubuntu 22.04, pytest 7.4.0, but I've been able to reproduce it all the way back to 5.4.3

[x] minimal example if possible runner.py, broken:

import sys
import pytest

class Plugin:
  def pytest_addoption(self, parser, pluginmanager):
      parser.addoption("--param", required=True)

def main():
  sys.exit(pytest.main(plugins=[Plugin()]))

if __name__ == "__main__":
  main()

$ python runner.py --param foo
ERROR: usage: runner.py [options] [file_or_dir] [file_or_dir] [...]
runner.py: error: the following arguments are required: --param (via addopts config)

conftest.py, works:

import pytest

def pytest_addoption(self, parser, pluginmanager):
  parser.addoption("--param", required=True)

$ pytest 
============================================================================================================================= test session starts ==============================================================================================================================
platform linux -- Python 3.9.9, pytest-5.4.3, py-1.11.0, pluggy-0.13.1
rootdir: /tmp/bugreport
collected 0 items                                                                                                                                                                                                                                                              

============================================================================================================================ no tests ran in 0.01s =============================================================================================================================

pytest-dev / pytest

Custom plugins with required options break CLI parsing when using pytest.main() #11240