ref(stdlib): remove urllib3 workaround

[pabloDeputter]

Description

Issues

Reminders

• Please add tests to validate your changes, and lint your code using uv run ruff.
• Add GH Issue ID & Linear ID (if applicable)
• PR title should use conventional commit style (feat:, fix:, ref:, meta:)
• For external contributors: CONTRIBUTING.md, Sentry SDK development docs, Discord community

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[github-actions]

Codecov Results 📊

✅ 119060 passed | ⏭️ 6762 skipped | Total: 125822 | Pass Rate: 94.63% | Execution Time: 415m 17s

📊 Comparison with Base Branch

Metric	Change
Total Tests	—
Passed Tests	—
Failed Tests	—
Skipped Tests	—

✨ No test changes detected

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2484 uncovered lines.
✅ Project coverage is 90.3%. Comparing base (base) to head (head).

Coverage diff

@@            Coverage Diff             @@
##          main       #PR       +/-##
==========================================
+ Coverage    90.26%    90.30%    +0.04%
==========================================
  Files          193       193         —
  Lines        25601     25601         —
  Branches      9436      9436         —
==========================================
+ Hits         23107     23117       +10
- Misses        2494      2484       -10
- Partials      1437      1434        -3

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