chore(deps): update guzzlehttp/guzzle requirement from ^7.0 to ^8.1

[dependabot]

Updates the requirements on guzzlehttp/guzzle to permit the latest version.

Release notes

Sourced from guzzlehttp/guzzle's releases.

8.1.0

Added

• Add PHP 8.6+ stream TLS session sharing, while persistent sharing remains cURL-only
• Add support for PHP 8.6
• Add in-transfer resends of seekable streamed uploads when PHP exposes CURLOPT_SEEKFUNCTION

Changed

• Adjusted guzzlehttp/promises version constraint to ^3.0.2
• Adjusted guzzlehttp/psr7 version constraint to ^3.1
• Classify stream handler transport failures using PHP 8.6+ structured stream error codes
• Hide URI credentials, queries, and fragments in automatic exception messages
• Match no_proxy rules against IPv4 hosts written in the shorthand a transport reads as an address
• Hold the cURL easy handle out of the reuse pool until a silent retry has been dispatched
• Treat a deferred resolved with a pending retry promise as progress when waiting on cURL transfers

Changelog

Sourced from guzzlehttp/guzzle's changelog.

8.1.0 - Upcoming

Added

• Add PHP 8.6+ stream TLS session sharing, while persistent sharing remains cURL-only
• Add support for PHP 8.6
• Add in-transfer resends of seekable streamed uploads when PHP exposes CURLOPT_SEEKFUNCTION

Changed

• Adjusted guzzlehttp/promises version constraint to ^3.0.2
• Adjusted guzzlehttp/psr7 version constraint to ^3.1
• Classify stream handler transport failures using PHP 8.6+ structured stream error codes
• Hide URI credentials, queries, and fragments in automatic exception messages
• Match no_proxy rules against IPv4 hosts written in the shorthand a transport reads as an address
• Hold the cURL easy handle out of the reuse pool until a silent retry has been dispatched
• Treat a deferred resolved with a pending retry promise as progress when waiting on cURL transfers

8.0.3 - 2026-08-24

Changed

• Adjusted guzzlehttp/psr7 version constraint to ^3.0.1

8.0.2 - 2026-08-05

Changed

• Adjusted guzzlehttp/promises version constraint to ^3.0.1

Fixed

• Fail a cURL multi handler wait with an attributable error when the transfer is no longer tracked
• Fix StreamHandler resolving numeric IPv4 hosts differently from cURL handlers on macOS and Windows
• Fix StreamHandler TLS peer names and proxy authorities for numeric IPv4 hosts on all platforms
• Settle a cURL multi handler transfer displaced by a request reusing its native handle ID

8.0.1 - 2026-07-26

Security

• Reject request URI hosts and Host header values that are not printable ASCII (GHSA-v5mv-p594-2x33)
• Reject URI hosts with a percent escape or that are not valid RFC 3986 hosts (GHSA-v5mv-p594-2x33)
• Reject numeric-looking URI hosts with trailing dots, read as IPv4 addresses (GHSA-v5mv-p594-2x33)
• Treat percent-escaped cookie domains as exact-match-only (GHSA-f7vp-7xgx-4w4r)
• Regenerate a derived Host header after client URI rewrites (GHSA-v5mv-p594-2x33)

... (truncated)

Commits

• 2cdae51 Bump versions (#3930)
• 2c2660b Merge remote-tracking branch 'origin/8.0' into 8.1
• b690be7 Release 8.0.3
• 3ffe68d Adjusted guzzlehttp/psr7 version constraint to ^3.0.1 (#3929)
• 450b9a5 Add PHP 8.6 to the supported versions and version guidance (#3927)
• 31d536d Treat a deferred resolved with a pending retry promise as wait progress (#3925)
• a43bf79 Invoke the static TLS range assertion without an object for PHP 8.6 (#3926)
• 67c1b87 Bump psr7 references in the docs (#3922)
• 494e06a Harden automatic URI diagnostics (#3916)
• 6c48c8f Merge branch '8.0' into 8.1
• Additional commits viewable in compare view

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[timkley]

Closing: major version bump — not auto-merging.

[dependabot]

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