Revert "Mark x86 CI as xfail"

[vchuravy]

Reverts #2614

after #2619 the address-space issue should be reduced.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.30%. Comparing base (83984b0) to head (d0a7b43).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2622      +/-   ##
==========================================
+ Coverage   74.33%   75.30%   +0.97%     
==========================================
  Files          57       57              
  Lines       17960    17751     -209     
==========================================
+ Hits        13351    13368      +17     
+ Misses       4609     4383     -226     

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[vchuravy]

Hm despite splitting the work between multiple workers we run out of memory/address-space.

[vchuravy]

       From worker 2:	[ Info: Skipped RenderDocument step (doctest only).
tests                   (2) |   407.11 |   3.82 |  0.9 |    6557.15 |  1143.62 |
make_zero               (2) |   139.83 |   1.52 |  1.1 |    5559.74 |  1479.14 |
sugar                   (2) |    30.63 |   0.24 |  0.8 |     854.52 |  1543.55 |
      From worker 3:	┌ Info: Testing against
      From worker 3:	└   Enzyme_jll.libEnzyme = "/home/runner/.julia/artifacts/138277611a96d7253557af10b0b4be3d6cb52584/lib/libEnzyme-15.so"

Nice we switch workers when we get close-ish to running out of memory