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 88.03%. Comparing base (05d6b9b) to head (51a3c66).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #61195      +/-   ##
==========================================
- Coverage   88.53%   88.03%   -0.51%     
==========================================
  Files         703      703              
  Lines      208599   208613      +14     
  Branches    40229    40164      -65     
==========================================
- Hits       184685   183648    -1037     
- Misses      15939    16925     +986     
- Partials     7975     8040      +65     

Files with missing lines	Coverage Δ
lib/internal/url.js	91.20% <100.00%> (-2.88%)	⬇️

... and 104 files with indirect coverage changes

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[avivkeller]

Please amend your commit to abide by the guidelines