black not respecting max-length flag

[onlinejudge95]

Describe the bug
black does not respect the --line-length default of 88 on a with statement

To Reproduce Steps to reproduce the behavior:

1. Take the following piece of code defined in the following branch

async def send_batch_mail_async(params: List[Dict[str, Union[str, int, dict]]]) -> None:
    """
    Helper method to send batch mails asynchronously.
    This opens a new thread as sending a mail is an I/O bound process
    """
    with current_app._get_current_object().app_context(), mail.get_connection() as connection:
        messages = [
            EmailMessage(
                param["subject"],
                render_template(
                    f"email/{param['template_id']}.txt", **param["template_params"]
                ),
                param["sender"],
                [param["receiver"]],
                connection=connection,
            )
            for param in params
        ]
        connection.send_messages(messages)

2. Run black with the following arguments black --config config/pyproject.toml .
3. Config file used is

[tool.black]
verbose = true
target-version = ["py39"]
exclude = "migrations"

Expected behavior
Expectation from black is to be able to format the with statement in constraint to the --line-length config parameter.

Environment (please complete the following information):

• black version: 21.5b1
• OS version: ubuntu-20.04
• Python version: 3.9.4

Does this bug also happen on main?
Yes the same issue persists using the main branch as well.
Link
Screenshot

Additional context
Issue is reported in the following GitHub action run https://github.com/unofficialopensource-knit/email_service/pull/40/checks?check_run_id=2599706530

[JelleZijlstra]

Duplicate of #664.