Adds BSEED/Tuya dimmer switch variant _TZE204_vevc4c6g

[Elyasin]

Proposed change

Simple addition to the model info. I have this switch at home as well as the _TZE200_3p5ydos3 they are the same practically.

Additional information

Used at home and tested it.

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 88.19%. Comparing base (bfbfb48) to head (399f86b).
Report is 6 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #3130      +/-   ##
==========================================
+ Coverage   88.14%   88.19%   +0.04%     
==========================================
  Files         299      300       +1     
  Lines        9389     9400      +11     
==========================================
+ Hits         8276     8290      +14     
+ Misses       1113     1110       -3     

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[TheJulianJES]

Thanks!