:white_check_mark: Add test for new help option
:white_check_mark: Add test for new help option

A CLI option was added here: https://github.com/miketheman/pytest-socket/blob/ed0305abad5b46130822c955ba896130176b0151/pytest_socket.py#L14-L21
This test runs pytest with `--help` and confirms the option is displayed
to the user.

Signed-off-by: Mike Fiedler <af44b651315133051dded0e55830cbf76e9bfef9@gmail.com>

miketheman/pytest-socket