MythX cannot be executed after installed.

* MythX CLI version: 0.6.22
* Python version: 3.9.1
* Operating System: macOS 12.1 Monterey

### Description

I followed mythx-cli documentation to install mythx-cli. No matter what command typed in, mythx-cli only shows the Traceback message.

### What I Did

```
~:pip3 install mythx-cli
~:mythx analyze --help

Traceback (most recent call last):
File "/opt/homebrew/bin/mythx", line 5, in
from mythx_cli.cli import cli
File "/opt/homebrew/lib/python3.9/site-packages/mythx_cli/cli.py", line 21, in
from mythx_cli.render.command import render
File "/opt/homebrew/lib/python3.9/site-packages/mythx_cli/render/command.py", line 7, in
import jinja2
File "/opt/homebrew/lib/python3.9/site-packages/jinja2/__init__.py", line 12, in
from .environment import Environment
File "/opt/homebrew/lib/python3.9/site-packages/jinja2/environment.py", line 25, in
from .defaults import BLOCK_END_STRING
File "/opt/homebrew/lib/python3.9/site-packages/jinja2/defaults.py", line 3, in
from .filters import FILTERS as DEFAULT_FILTERS # noqa: F401
File "/opt/homebrew/lib/python3.9/site-packages/jinja2/filters.py", line 13, in
from markupsafe import soft_unicode
ImportError: cannot import name 'soft_unicode' from 'markupsafe' (/opt/homebrew/lib/python3.9/site-packages/markupsafe/__init__.py)
```