Update libmf submodule and reenable CodeQL on it

[ericstj]

No description provided.

[ericstj]

Looks like we now have some warnings as errors on x86. That's noticing our intentional truncation - where before the truncation happened in the loop bounds as potentially infiinite loop. I'll need to make another change to libmf to fix this.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.65%. Comparing base (4d1a8c0) to head (6a03258).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7159      +/-   ##
==========================================
- Coverage   68.92%   68.65%   -0.27%     
==========================================
  Files        1396     1262     -134     
  Lines      266745   257767    -8978     
  Branches    27560    26660     -900     
==========================================
- Hits       183849   176976    -6873     
+ Misses      75792    73978    -1814     
+ Partials     7104     6813     -291     

Flag	Coverage Δ
Debug	68.65% <ø> (-0.27%)	⬇️
production	62.93% <ø> (-0.59%)	⬇️
test	88.85% <ø> (+<0.01%)	⬆️

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see 142 files with indirect coverage changes

[michaelgsharp]

Looks good. I'll approve for now but still need the x86 fix.