Add auth_timeout parameter when supported
Paramiko 2.2 introduces the auth_timeout parameter. This will set the
parameter to the same value of the timeout parameter to prevent
"Authentication timeout" errors.
(cherry picked from commit e7f21dd1af)
Conditionally add auth_timeout to ssh.connect
Renamed sock_kwarg to ssh_connect_kwargs and conditionally added the
auth_timeout parameter based on the installed paramiko version.
(cherry picked from commit 6c41e97eee)
Add changelog fragment
(cherry picked from commit 7679a92db7)
