Changes to MarkupSafe version 2.1.0 break salt-key

[seandjones92]

Description of the tech debt to be addressed, include links and screenshots

When running salt-key commands we get the following output on 3004.2:

[root@4c0a5bc0f3a0:0 /]# salt-key -L
Error: cannot import name 'soft_unicode' from 'markupsafe' (/usr/local/lib/python3.9/site-packages/markupsafe/__init__.py)

It looks like MarkupSafe removed soft_unicode in version 2.1.0 but the 3004.2 requirements don't pin a version of MarkupSafe:
https://markupsafe.palletsprojects.com/en/2.1.x/changes/#version-2-1-0

salt/requirements/base.txt

Line 4 in 604c955

MarkupSafe

When I reinstall MarkupSafe at version 2.0.1 there is no issue:

[root@4c0a5bc0f3a0:0 /]# salt-key -L
Error: cannot import name 'soft_unicode' from 'markupsafe' (/usr/local/lib/python3.9/site-packages/markupsafe/__init__.py)
[root@4c0a5bc0f3a0:0 /]# pip uninstall MarkupSafe
Found existing installation: MarkupSafe 2.1.1
Uninstalling MarkupSafe-2.1.1:
  Would remove:
    /usr/local/lib/python3.9/site-packages/MarkupSafe-2.1.1.dist-info/*
    /usr/local/lib/python3.9/site-packages/markupsafe/*
Proceed (Y/n)? y
  Successfully uninstalled MarkupSafe-2.1.1
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
[root@4c0a5bc0f3a0:0 /]# pip install MarkupSafe==2.0.1
Collecting MarkupSafe==2.0.1
  Downloading MarkupSafe-2.0.1-cp39-cp39-manylinux_2_5_x86_64.manylinux1_x86_64.manylinux_2_12_x86_64.manylinux2010_x86_64.whl (30 kB)
Installing collected packages: MarkupSafe
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
flask 1.1.4 requires Jinja2<3.0,>=2.10.1, but you have jinja2 3.1.2 which is incompatible.
Successfully installed MarkupSafe-2.0.1
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
[root@4c0a5bc0f3a0:0 /]# salt-key -L
Accepted Keys:
Denied Keys:
Unaccepted Keys:
Rejected Keys:

Versions Report

Salt Version:
Salt: 3004.2

Dependency Versions:
cffi: 1.15.1
cherrypy: Not Installed
dateutil: 2.8.2
docker-py: Not Installed
gitdb: 4.0.9
gitpython: 3.1.27
Jinja2: 2.10.3
libgit2: Not Installed
M2Crypto: Not Installed
Mako: Not Installed
msgpack: 1.0.4
msgpack-pure: Not Installed
mysql-python: Not Installed
pycparser: 2.21
pycrypto: Not Installed
pycryptodome: 3.15.0
pygit2: Not Installed
Python: 3.9.6 (default, Jul 29 2022, 22:18:05)
python-gnupg: Not Installed
PyYAML: 6.0
PyZMQ: 21.0.2
smmap: 5.0.0
timelib: Not Installed
Tornado: 4.5.3
ZMQ: 4.3.3

System Versions:
dist: centos 7 Core
locale: utf-8
machine: x86_64
release: 5.10.104-linuxkit
system: Linux
version: CentOS Linux 7 Core