bump websockets to 12.0

[azerv1]

Closes #445

[michaelhly]

Would you mind merging master?

[michaelhly]

There is still a conflict.

Can you run

git fetch origin master
git merge origin/master

Delete poetry.lock. And then re-install all the dependencies?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.00%. Comparing base (b14dde1) to head (821f0dd).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #469   +/-   ##
=======================================
  Coverage   91.00%   91.00%           
=======================================
  Files          28       28           
  Lines        2380     2380           
=======================================
  Hits         2166     2166           
  Misses        214      214           

---- 🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests