pyinfra seems to have trouble using openssh CA signed user certificates #1569
Description
Is your feature request related to a problem? Please describe
I've setup a user pyinfra for all hosts using certificate based access with on openssh CA.
Although I've informed pyinfra inventory of all the required field still I need to create entries for all hosts in ssh/config with the specific key and signed certificate files for the pyinfra user.
I;ll solve this by moving pyinfra from venv to container. However, when using venv in a sudoer account on the control client it creates a lot of administrative overhead in the ssh/config (double entries for normal user account and pyinfra user like myhost and myhost-pyinfra entries.
Describe the solution you'd like
Whatever works for ssh from CLI should work when running pyinfra.
So if this works 'ssh pyinfra@host' with openssh CA signed host/user certificates then pyinfra running in venv should just be able to work without any overhead required (or just adding the info in the inventory.py)