chore: disable underscore on macOS

[alfonsograziano]

Checklist

• npm test passes
• contribution guidelines followed
  here

Underscore is constantly failing on Node.js v18.x:

• https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/3310/nodes=osx1015/testReport/(root)/citgm/underscore_v1_13_6/
• https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/3309/nodes=osx1015/testReport/(root)/citgm/underscore_v1_13_6/
• https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/3300/nodes=osx1015/testReport/(root)/citgm/underscore_v1_13_6/

This PR will disable underscore for now.

@jashkenas you are listed as the maintainer of this package, can you please take a look at the issue and evaluate if is a legitimate issue or a false positive from citgm that we can fix? :)
By running citgm underscore I'm currently not able to reproduce the issue on my (macOS) machine.

[codecov-commenter]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (c47ab10) 96.44% compared to head (6f34176) 95.32%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1008      +/-   ##
==========================================
- Coverage   96.44%   95.32%   -1.13%     
==========================================
  Files          28       28              
  Lines        2139     2139              
==========================================
- Hits         2063     2039      -24     
- Misses         76      100      +24     

see 3 files with indirect coverage changes

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