chore(deps-dev): update httpx2 requirement from >=2.9.0 to >=2.9.1

[dependabot]

Updates the requirements on httpx2 to permit the latest version.

Release notes

Sourced from httpx2's releases.

v2.9.1

What's Changed

• Alias httpcore imports to httpcore2 in alias_httpx() by @​Kludex in pydantic/httpx2#1082

Full Changelog: pydantic/httpx2@v2.9.0...v2.9.1

Changelog

Sourced from httpx2's changelog.

2.9.1 (July 24th, 2026)

Fixed

• Alias httpcore imports to httpcore2 in alias_httpx(). (#1082)

2.9.0 (July 23rd, 2026)

Added

• Add alias_httpx(), letting applications make import httpx resolve to httpx2 process-wide. (#1077)

2.8.0 (July 23rd, 2026)

No changes since 2.7.0. Version bumped to stay in lockstep with httpcore2.

2.7.0 (July 14th, 2026)

Changed

• Update the vendored httpx-ws to upstream v0.9.0. (#1067)

2.6.0 (July 14th, 2026)

Added

• Add native WebSocket support by vendoring httpx-ws, installable with httpx2[ws]. (#1042)
• Add support for the QUERY HTTP method via httpx2.query() and client.query(). (#1055)

Changed

• Allow click 8.4+ in the cli extra, dropping the upper bound. (#1040)

2.5.0 (June 25th, 2026)

Added

• Add native server-sent events support via client.sse(). (#1046)
• Support | and |= operators for Headers. (#1047)

Fixed

• Allow IPv6 CIDR notation in no_proxy. (#967)

2.4.0 (June 11th, 2026)

Added

• Add HTTPXDeprecationWarning, a UserWarning subclass shown by default so deprecations are visible without enabling warnings. (#1029)

... (truncated)

Commits

• c39c6e3 Version 2.9.1 (#1083)
• a36b489 Alias httpcore imports to httpcore2 in alias_httpx() (#1082)
• See full diff in compare view

[dependabot]

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