Add Tuya illuminance sensor _TZE204_khx7nnka variant

[Havarius]

Proposed change

Additional information

Checklist

• The changes are tested and work correctly
• pre-commit checks pass / the code has been formatted using Black
• Tests have been added to verify that the new code works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.44%. Comparing base (3f4aee0) to head (c8bc686).
Report is 6 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #3532   +/-   ##
=======================================
  Coverage   89.44%   89.44%           
=======================================
  Files         311      311           
  Lines       10033    10033           
=======================================
  Hits         8974     8974           
  Misses       1059     1059           

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[TheJulianJES]

Thanks!