update building latest XLA 1.8

[Borda]

What does this PR do?

just regular update on building XLA for the latest 1.8

Before submitting

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PR review

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[codecov]

Codecov Report

Merging #7359 (84e660d) into master (df579a8) will decrease coverage by 0%.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #7359   +/-   ##
======================================
- Coverage      91%     91%   -0%     
======================================
  Files         200     200           
  Lines       12929   12932    +3     
======================================
- Hits        11780   11768   -12     
- Misses       1149    1164   +15