Fix typo in unit test name

[logiclrd]

This PR fixes a typo in unit test class name: AgggregateExceptionTests => AggregateExceptionTests

#skip-changelog

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.49%. Comparing base (c8da336) to head (9816107).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4604      +/-   ##
==========================================
- Coverage   73.49%   73.49%   -0.01%     
==========================================
  Files         482      482              
  Lines       17678    17678              
  Branches     3493     3493              
==========================================
- Hits        12993    12992       -1     
  Misses       3797     3797              
- Partials      888      889       +1     

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[jamescrosswell]

Thanks @logiclrd !