Log Message:
py-asyncssh: updated to 2.7.1

Release 2.7.1 (6 Sep 2021)
--------------------------

* Added an option to allow encrypted keys to be ignored when no passphrase
  is set. This behavior previously happened by default when loading keys
  from default locations, but now this option to load_keypairs() can be
  specified when loading any set of keys.

* Changed loading of default keys to automatically skip key types which
  aren't supported due to missing dependencies.

* Added the ability to specify "default" for server_host_key_algs, as
  a way for a client to request that its full set of default algorithms
  be advertised to the server, rather than just the algorithms matching
  keys in the client's known hosts list. Thanks go to Manfred Kaiser
  for suggesting this improvement.

* Added support for tilde-expansion in the config file "include"
  directive. Thanks go to Zack Cerza for reporting this and suggesting
  a fix.

* Improved interoperatbility of AsyncSSH SOCKS listener by sending a zero
  address rather than an empty hostname in the SOCKS CONNECT response.
  Thanks go to Github user juouy for reporting this and suggesting a fix.

* Fixed a couple of issues related to sending SSH_EXT_INFO messages.

* Fixed an issue with using SSHAcceptor as an async context manager.
  Thanks go to Paulo Costa for reporing this.

* Fixed an issue where a tunnel wasn't always cleaned up properly when
  creating a remote listener.

* Improved handling of connection drops, avoiding exceptions from being
  raised in some cases when the transport is abruptly closed.

* Made AsyncSSH SFTP support more tolerant of file permission values with
  undefined bits set. Thanks go to GitHub user ccwufu for reporting this.

* Added some missing key exchange algorithms in the AsyncSSH documentation.
  Thanks go to Jeremy Norris for noticing and reporting this.

* Added support for running AsyncSSH unit tests on systems with OpenSSL
  3.0 installed. Thanks go to Ken Dreyer for raising this issue and
  pointing out the new OpenSSL "provider" support for legacy algorithms.