Hello,,

The [new Celery 5.0](https://docs.celeryproject.org/en/stable/whatsnew-5.0.html) has been released and we may consider migrating to this version. I don't know if it has to happen now, if we should wait for version 5.1 or do it now. I am creating this ticket to track this version.

To process this issue, we should consider the consequences of this update, update the CLI calls, update API calls, and test these versions thoroughly.

@auvipy Can you tell a little more about this release? Is this release stable enough to update our project to these versions?  What consequences could this update have?

setup.py
#
#
#
"""Setup.py for the Airflow project."""
import glob
import logging
import os
import subprocess
import sys
import unittest
from copy import deepcopy
from distutils import log
from os.path import dirname, relpath
from textwrap import wrap
from typing import Dict, List
from setuptools import Command, Distribution, find_namespace_packages, setup
from setuptools.command.develop import develop as develop_orig
from setuptools.command.install import install as install_orig
INSTALL_PROVIDERS_FROM_SOURCES = 'INSTALL_PROVIDERS_FROM_SOURCES'
PY39 = sys.version_info >= (3, 9)
logger = logging.getLogger(__name__)
version = '2.2.0.dev0'
my_dir = dirname(__file__)
def airflow_test_suite() -> unittest.TestSuite:
    """Test suite for Airflow tests"""
    test_loader = unittest.TestLoader()
    test_suite = test_loader.discover(os.path.join(my_dir, 'tests'), pattern='test_*.py')
    return test_suite
class CleanCommand(Command):