Add Roborock S8 Pro Ultra

[spangenberg]

Fixes #1864

[spangenberg]

CI / Perform linting checks are unrelatedly failing and are also currently happening on master branch.

flake8...................................................................Failed
- hook id: flake8
- exit code: 1

miio/devtools/pcapparser.py:54:13: B036 Don't except `BaseException` unless you plan to re-raise it.
miio/integrations/lumi/gateway/alarm.py:97:13: B038 editing a loop's mutable iterable often leads to unexpected results/bugs
miio/integrations/lumi/gateway/devices/subdevice.py:334:13: B038 editing a loop's mutable iterable often leads to unexpected results/bugs```

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (4354615) 81.41% compared to head (bfe8065) 81.41%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1891   +/-   ##
=======================================
  Coverage   81.41%   81.41%           
=======================================
  Files         193      193           
  Lines       18564    18565    +1     
  Branches     4024     4024           
=======================================
+ Hits        15113    15114    +1     
  Misses       3170     3170           
  Partials      281      281           

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[rytilahti]

Thanks 👍