[2.8] Updated workflow files

[amsiglan]

Description

Updated workflow files to use 2.8 branches for running tests

Check List

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 31.49%. Comparing base (d9ca756) to head (d209161).
Report is 2 commits behind head on 2.8.

Additional details and impacted files

@@           Coverage Diff           @@
##              2.8     #922   +/-   ##
=======================================
  Coverage   31.49%   31.49%           
=======================================
  Files         138      138           
  Lines        4344     4344           
  Branches      725      775   +50     
=======================================
  Hits         1368     1368           
  Misses       2838     2838           
  Partials      138      138           

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