Update Rust crate hyper to v1.9.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
hyper (source)	workspace.dependencies	minor	1.8.1 → 1.9.0

---

Release Notes

hyperium/hyper (hyper)

v1.9.0

Compare Source

Bug Fixes

• ffi: validate null pointers before dereferencing in request/response functions (#​4038 (28e73ccd)
• http1:
  • allow keep-alive for chunked requests with trailers (#​4043) (7211ec25, closes #​4044)
  • use case-insensitive matching for trailer fields (#​4011) (3b344cac, closes #​4010)
  • use httparse config for Servers (#​4002) (bcb8ec57, closes #​3923)
• http2:
  • cancel sending client request body on response future drop (#​4042) (5b17a69e, closes #​4040)
  • non-utf8 char in Connection header may cause panic when calling to_str (#​4019) (c36ca8a5)

Features

• client:
  • expose HTTP/2 current max stream count (#​4026) (d51cb715)
  • add HTTP/2 max_local_error_reset_streams option (#​4021) (57787459)
• error: add 'Error::is_parse_version_h2' method (393c77c7)
• http1: add UpgradeableConnection::into_parts (e21205cf)

v1.8.1 (2025-11-13)

Bug Fixes

• http1: fix consuming extra CPU from previous change (#​3977) (4492f31e)

---

Configuration

📅 Schedule: (UTC)

• Branch creation
  • Between 12:00 AM and 03:59 AM, only on Monday (* 0-3 * * 1)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.

[codspeed-hq]

Merging this PR will not alter performance

❌ 1 regressed benchmark
✅ 4 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	WallTime	resolve_warm_jupyter_universal	143.3 ms	150.3 ms	-4.68%

---

_{Comparing renovate/hyper-1.x-lockfile (b2cd402) with main (d32d51b)}

[konstin]

Merging because hyperium/hyper#4042 is an important bugfix for the retry logic.