Added port number to login arguments

[rsmekala]

Current implementation fails with the below error using containers:

Could not retrieve fact='productmodel', resolution='<anonymous>': Authentication failed for user puppet@localhost

Adding port number seems to fix the issue for now. Don't exactly know where the root cause is. Will try to inquire on this further and update the thread.

Verified NETCONF session from container to host:

root@xxxx:/puppet-agent# ssh puppet@localhost -s netconf
<!-- No zombies were killed during the creation of this user interface -->
<!-- user puppet, class puppet -->
<hello xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <capabilities>
    <capability>urn:ietf:params:netconf:base:1.0</capability>
    <capability>urn:ietf:params:netconf:capability:candidate:1.0</capability>
    <capability>urn:ietf:params:netconf:capability:confirmed-commit:1.0</capability>
    <capability>urn:ietf:params:netconf:capability:validate:1.0</capability>
    <capability>urn:ietf:params:netconf:capability:url:1.0?scheme=http,ftp,file</capability>
    <capability>urn:ietf:params:xml:ns:netconf:base:1.0</capability>
    <capability>urn:ietf:params:xml:ns:netconf:capability:candidate:1.0</capability>
    <capability>urn:ietf:params:xml:ns:netconf:capability:confirmed-commit:1.0</capability>
    <capability>urn:ietf:params:xml:ns:netconf:capability:validate:1.0</capability>
    <capability>urn:ietf:params:xml:ns:netconf:capability:url:1.0?scheme=http,ftp,file</capability>
    <capability>urn:ietf:params:xml:ns:yang:ietf-netconf-monitoring</capability>
    <capability>http://xml.juniper.net/netconf/junos/1.0</capability>
    <capability>http://xml.juniper.net/dmi/system/1.0</capability>
  </capabilities>
  <session-id>5221</session-id>
</hello>
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