Hello @potiuk 

I believe you wrote this script - [`prepare_provider_packages.py`](https://github.com/apache/airflow/blob/master/dev/provider_packages/prepare_provider_packages.py).

I am wondering if there is any reason why you did not use the standard library - [`argument.ArgumentParser`](https://docs.python.org/3/library/argparse.html) in this script?
https://docs.python.org/3/library/argparse.html
https://github.com/apache/airflow/blob/550395192929f86376151b4385cea6b8dfb76e8e/dev/provider_packages/prepare_provider_packages.py#L1518-L1552

This makes the code overly complex and, by the way, more prone to errors e.g.  ``usage()`` method describes the `--version-suffix-for-pypi` parameter, but we changed its name to `--version-suffix`.

What do you think to rewrite this script to use the standard library? Do we have a requirement that prevents this? I think of something similar to [my gist](https://gist.github.com/mik-laj/ff008718fc6cec9fe929731b8c62d6f8).

dev/provider_packages/prepare_provider_packages.py
SECRETS_PATTERN,
    TRANSFERS_PATTERN,
    WRONG_TRANSFERS_PATTERN,
}
EXPECTED_SUFFIXES: Dict[EntityType, str] = {
    EntityType.Operators: "Operator",
    EntityType.Hooks: "Hook",
    EntityType.Sensors: "Sensor",
    EntityType.Secrets: "Backend",
    EntityType.Transfers: "Operator",
}
def get_source_airflow_folder() -> str:
    """
    Returns source directory for whole airflow (from the main airflow project).
    :return: the folder path
    """
    return os.path.abspath(SOURCE_DIR_PATH)
def get_source_providers_folder() -> str:
    """
    Returns source directory for providers (from the main airflow project).
    :return: the folder path
    """
    return os.path.join(get_source_airflow_folder(), "airflow", "providers")
def get_target_folder() -> str:
    """
    Returns target directory for providers (in the provider_packages folder)
    :return: the folder path
    """
    return os.path.abspath(os.path.join(dirname(__file__), os.pardir, os.pardir, "provider_packages"))
def get_target_providers_folder() -> str: