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
docs/conf.py
'zdesk',
]
# The default options for autodoc directives. They are applied to all autodoc directives automatically.
autodoc_default_options = {'show-inheritance': True, 'members': True}
# -- Options for sphinx.ext.intersphinx ----------------------------------------
# 
# This config value contains names of other projects that should
# be linked to in this documentation.
# Inventories are only downloaded once by docs/exts/docs_build/fetch_inventories.py.
intersphinx_mapping = {
    pkg_name: (f"{THIRD_PARTY_INDEXES[pkg_name]}/", (f'{INVENTORY_CACHE_DIR}/{pkg_name}/objects.inv',))
    for pkg_name in [
        'boto3',
        'celery',
        'hdfs',
        'jinja2',
        'mongodb',
        'pandas',
        'python',
        'requests',
        'sqlalchemy',
    ]
}
if PACKAGE_NAME in ('apache-airflow-providers-google', 'apache-airflow'):
    intersphinx_mapping.update(
        {
            pkg_name: (
                f"{THIRD_PARTY_INDEXES[pkg_name]}/",
                (f'{INVENTORY_CACHE_DIR}/{pkg_name}/objects.inv',),
            )