[codesprints] Errors when preparing environment

[Jim Fenton <[e-mail]>]

Preparing for next weekend’s Code Sprint, I’m getting about 30 
errors similar to the following when I run the tests:

```
======================================================================
ERROR: test_add_author_forms (ietf.doc.tests_js.EditAuthorsTests)
----------------------------------------------------------------------
Traceback (most recent call last):
   File 
"/home/dev/.local/lib/python3.9/site-packages/selenium/webdriver/common/driver_finder.py", 
line 38, in get_path
     path = SeleniumManager().driver_location(options) if path is None 
else path
   File 
"/home/dev/.local/lib/python3.9/site-packages/selenium/webdriver/common/selenium_manager.py", 
line 89, in driver_location
     args = [str(self.get_binary()), "--browser", browser]
   File 
"/home/dev/.local/lib/python3.9/site-packages/selenium/webdriver/common/selenium_manager.py", 
line 63, in get_binary
     raise WebDriverException(f"Unsupported platform/architecture 
combination: {sys.platform}/{arch}")
selenium.common.exceptions.WebDriverException: Message: Unsupported 
platform/architecture combination: linux/aarch64


The above exception was the direct cause of the following exception:

Traceback (most recent call last):
   File "/workspace/ietf/doc/tests_js.py", line 21, in setUp
     super(EditAuthorsTests, self).setUp()
   File "/workspace/ietf/utils/jstest.py", line 55, in setUp
     self.driver = start_web_driver()
   File "/workspace/ietf/utils/jstest.py", line 37, in start_web_driver
     return webdriver.Firefox(service=service, options=options)
   File 
"/home/dev/.local/lib/python3.9/site-packages/selenium/webdriver/firefox/webdriver.py", 
line 59, in __init__
     self.service.path = DriverFinder.get_path(self.service, options)
   File 
"/home/dev/.local/lib/python3.9/site-packages/selenium/webdriver/common/driver_finder.py", 
line 41, in get_path
     raise NoSuchDriverException(msg) from err
selenium.common.exceptions.NoSuchDriverException: Message: Unable to 
obtain driver for firefox using Selenium Manager.; For documentation on 
this error, please visit: 
https://www.selenium.dev/documentation/webdriver/troubleshooting/errors/driver_location
```

I went back and did a ‘./cleanall’ to make sure I didn’t have some 
old stuff lying around, but same errors. Any ideas?

-Jim