chore(deps): update asyncssh requirement from >=2.14.0 to >=2.23.1

[dependabot]

Updates the requirements on asyncssh to permit the latest version.

Changelog

Sourced from asyncssh's changelog.

Release 2.23.1 (6 Jun 2026)

• Fixed an SCP path traversal issue. Thanks go to Jaden Furtado for reporting this issue.

• Expanded previous fix to block unsafe user substitutions in server config. Thanks go to GitHub user cesabici-bit for reporting this issue.

• Fixed default value for reuse_address and reuse_port, matching the behaavior of asyncio.create_server(). Thanks go to Alexander Shlemin for reporting the inconsistency.

Release 2.23.0 (8 May 2026)

• Added support for "Match localnetwork". Thanks go to Théophile Bastian for reporting this new match type, added in OpenSSH 9.4.

• Enabled support for RSA with SHA-2 signatures in ssh-agent and Pageant. Thanks go to GitHub user Netzvamp for reporting this.

• Changed MAC algorithm negotation to be skipped when using AEAD ciphers. Thanks go to GitHub user LilleCarl for reporting this issue and suggesting a potential fix.

• Improved graceful termination when using ProxyCommand, waiting for the ProxyCommand tunnel to close when cleaning up a connection. Thanks go to Simon Liétar for reporting this issue and helping to investigate possible solutions.

• Blocked unsafe user substitutions from being used in server config. Thanks go to GitHub user 0xHunSec for reporting this problem and providing reproduction code.

• Fixed an issue with config evaluation when "Match final" was combined with Hostname directives. Thanks go to GitHub user commonism for reporting this issue and coming up with a reproducible test case and a potential fix.

• Fixed a resource leak in xauth support. Thanks go to GitHub user taovinci0 for reporting this problem and providing an initial version of a fix.

• Fixed issue with multi-hop ProxyJump directives in a config file not working correctly. Thanks go to Rémi Benoit for reporting this problem and providing a detailed root cause analysis.

• Fixed string encoding in SFTPName objects returned by realpath().

... (truncated)

Commits

• 1b5839f Bump version number up to 2.23.1 and update change log
• d730803 Fix SCP path traversal issue
• 3d515ba Expand unsafe username checks in commit 2af2382 to cover more cases
• a60f863 Add warning about pre-existing links placed in an SFTP chroot
• 8ca6702 Fix default values for reuse_address and reuse_port
• 710e7a9 Fix date in change log
• c060703 Bump version number up to 2.23.0 and update change log
• 2af2382 Catch unsafe user substitutions in config
• a9dba89 Fix string encoding in SFTPName objects returned by realpath()
• d2653a1 Work around import issue introduced in fido2 version 2.2.0
• Additional commits viewable in compare view

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