Update mac image to see if brew works

[SeanNaren]

What does this PR do?

Fixes #<issue_number>

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[codecov]

Codecov Report

Merging #6971 (900b186) into master (fe0d088) will decrease coverage by 4%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #6971    +/-   ##
=======================================
- Coverage      92%     87%    -4%     
=======================================
  Files         194     194            
  Lines       12346   12346            
=======================================
- Hits        11331   10781   -550     
- Misses       1015    1565   +550     

[SeanNaren]

Closing as this doesn't work