chore(deps): Update testing/coverage deps

[dpogue]

Platforms affected

All

Description

Resolves some npm audit warnings by updating to the latest versions of jasmine and c8. Overrides c8's yargs dependency version to make it work on Node 26.

Testing

Tests pass locally

Checklist

• I've run the tests to see all new and existing tests pass

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.73%. Comparing base (e5c554d) to head (f7bfda4).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #989      +/-   ##
==========================================
+ Coverage   89.61%   89.73%   +0.11%     
==========================================
  Files          41       41              
  Lines        5190     5192       +2     
==========================================
+ Hits         4651     4659       +8     
+ Misses        539      533       -6     

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[erisu]

I believe this dependency was only used in the helper.js file that was removed in this PR, so it might be OK to remove it. Needs confirmation.

[dpogue]

I might need to restore the helper stuff, because Windows tests were timing out in my fork

[erisu]

LGTM