jenkins: fix Jenkins agent username
Name of user used to connect to agents via SSH was recently renamed
from jenkins-slave to jenkins-agent. The controller was
failing to connect to the agent (which btw are the same host) due to
this
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Name of user used to connect to agents via SSH was recently renamed
from jenkins-slave to jenkins-agent. The controller was
failing to connect to the agent (which btw are the same host) due to
this