switch agents pool

[Borda]

What does this PR do?

switch agents pool for Azure

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[codecov]

Codecov Report

Merging #6270 (78a848b) into master (412a7d8) will decrease coverage by 0%.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #6270   +/-   ##
======================================
- Coverage      93%     93%   -0%     
======================================
  Files         159     159           
  Lines       11365   11365           
======================================
- Hits        10608   10579   -29     
- Misses        757     786   +29