util: enforce shouldColorize in styleText array arg

[marco-ippolito]

Fixes: #56717

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.22%. Comparing base (d978610) to head (74f3eb3).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #56722   +/-   ##
=======================================
  Coverage   89.21%   89.22%           
=======================================
  Files         662      662           
  Lines      191945   191950    +5     
  Branches    36948    36943    -5     
=======================================
+ Hits       171238   171259   +21     
+ Misses      13549    13543    -6     
+ Partials     7158     7148   -10     

Files with missing lines	Coverage Δ
lib/util.js	97.78% <100.00%> (+0.02%)	⬆️

... and 22 files with indirect coverage changes