util: use primordials consistently in inspect.js

[Ayoub-Mabrouk]

Replace native array methods (.push, .pop, .splice, .slice) withprimordials (ArrayPrototypePush, ArrayPrototypePop, ArrayPrototypeSplice,ArrayPrototypeSlice) throughout lib/internal/util/inspect.js for consistency and security.

This improves protection against prototype pollution and aligns with the primordials pattern used throughout the codebase.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.54%. Comparing base (05d6b9b) to head (2e8ff01).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #61196   +/-   ##
=======================================
  Coverage   88.53%   88.54%           
=======================================
  Files         703      703           
  Lines      208599   208613   +14     
  Branches    40229    40239   +10     
=======================================
+ Hits       184685   184718   +33     
+ Misses      15939    15907   -32     
- Partials     7975     7988   +13     

Files with missing lines	Coverage Δ
lib/internal/util/inspect.js	99.67% <100.00%> (+0.03%)	⬆️

... and 30 files with indirect coverage changes

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[avivkeller]

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