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 88.54%. Comparing base (05d6b9b) to head (51a3c66).
⚠️ Report is 1102 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #61195      +/-   ##
==========================================
+ Coverage   88.53%   88.54%   +0.01%     
==========================================
  Files         703      703              
  Lines      208599   208613      +14     
  Branches    40229    40250      +21     
==========================================
+ Hits       184685   184726      +41     
+ Misses      15939    15901      -38     
- Partials     7975     7986      +11     

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

... and 35 files with indirect coverage changes

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[avivkeller]

Please amend your commit to abide by the guidelines

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/71372/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/71533/

[github-actions]

Failed to start CI

- Validating Jenkins credentials
✔  Jenkins credentials valid
- Querying data for job/node-test-pull-request/71533/
[SyntaxError: Unexpected token '<', ..."    
  https://github.com/nodejs/node/actions/runs/26100654712