test(huggingface_hub): Use httpx2-pytest for huggingface_hub>=2

[alexander-alderman-webb]

Description

Adjust to huggingface_hub using httpx2 internally.

Issues

Closes #7777

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

[sentrivana]

🙏🏻

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[github-actions]

Codecov Results 📊

✅ 131372 passed | ⏭️ 7185 skipped | Total: 138557 | Pass Rate: 94.81% | Execution Time: 443m 52s

All tests are passing successfully.

✅ Patch coverage is 100.00%. Project has 2556 uncovered lines.
❌ Project coverage is 90.26%. Comparing base (e0ab792) to head (6f2a52d).

Coverage diff

@@            Coverage Diff             @@
##        master       #PR       +/-##
==========================================
- Coverage    90.27%    90.26%    -0.01%
==========================================
  Files          195       195         —
  Lines        26244     26248        +4
  Branches      9786      9790        +4
==========================================
+ Hits         23692     23692         —
- Misses        2552      2556        +4
- Partials      1485      1486        +1

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