url: use ArrayPrototypePush in URLSearchParams methods

[Ayoub-Mabrouk]

Replace native array.push() with ArrayPrototypePush in URLSearchParams.getAll() and parseParams() for consistency with the primordials pattern.
This improves security against prototype pollution and aligns with existing patterns in the file.

[nodejs-github-bot]

Review requested:

• @nodejs/url

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.53%. Comparing base (05d6b9b) to head (574e617).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #61195      +/-   ##
==========================================
- Coverage   88.53%   88.53%   -0.01%     
==========================================
  Files         703      703              
  Lines      208599   208599              
  Branches    40229    40233       +4     
==========================================
- Hits       184685   184682       -3     
+ Misses      15939    15938       -1     
- Partials     7975     7979       +4     

Files with missing lines	Coverage Δ
lib/internal/url.js	94.07% <100.00%> (ø)

... and 30 files with indirect coverage changes

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