Add Tuya Thermostat _TZE204_mpbki2zm

[prairiesnpr]

Proposed change

Adds _TZE204_mpbki2zm

Based on: https://github.com/Koenkk/zigbee-herdsman-converters/blob/b79bc945d477ca118280537cb075798ea49cd5b9/src/devices/tuya.ts#L11313

Additional information

Closes: #2529

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 90.96%. Comparing base (4e96fae) to head (e47655b).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #3775      +/-   ##
==========================================
+ Coverage   90.95%   90.96%   +0.01%     
==========================================
  Files         326      326              
  Lines       10597    10613      +16     
==========================================
+ Hits         9638     9654      +16     
  Misses        959      959              

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