fixes issue where junos shared module was ignoring ssh_keyfile (#17712)
fixes issue where junos shared module was ignoring ssh_keyfile (#17712)

This fixes a problem with the Netconf transport in which the ssh keyfile
wasn't being used if it was defined.  The ref issue is filed against 2.1.1
but have been unable to replicate the problem in that version

ref: ansible/ansible-modules-core#4966
thaim/ansible,thaim/ansible