Widen the column limit in yapf

[alexreinking]

There was some discussion in the slack that the automatically formatted Exo code is hard to read. Here's a PR that at least widens the column limit, but also consolidates the formatting operation down to a single private function so you can do whatever you want there.

As a reminder, updating the goldens is done by:

$ pytest tests --update-golden -n auto

Hope this greases the wheels.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.53%. Comparing base (5432275) to head (1b3cc65).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #807   +/-   ##
=======================================
  Coverage   88.53%   88.53%           
=======================================
  Files         100      100           
  Lines       21895    21893    -2     
=======================================
- Hits        19384    19383    -1     
+ Misses       2511     2510    -1     

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[yamaguchi1024]

LGTM, thanks Alex!