Hello,

Slack has released updates to its library and we can start using it for it. 

We especially like one change.

> slack_sdk has no required dependencies. This means aiohttp is no longer automatically resolved.

I've looked through the documentation and it doesn't look like a difficult task, but I think it's still worth testing.
More info: https://slack.dev/python-slack-sdk/v3-migration/index.html#from-slackclient-2-x

Best regards,
Kamil Breguła
airflow/providers/slack/hooks/slack.py
#
#
#
"""Hook for Slack"""
from typing import Any, Optional
from slack import WebClient
from airflow.exceptions import AirflowException
from airflow.hooks.base import BaseHook
class SlackHook(BaseHook):