chore(BACKERS): update domain s/testmu.ai/testmuai.com/

[vytas7]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (f81911e) to head (f5fb678).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master     #2603   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           64        64           
  Lines         7911      7911           
  Branches      1086      1086           
=========================================
  Hits          7911      7911           

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