Infrastructure nodes should not count as scan job nodes

[gscho]

Describe the bug

When you configure a node to report chef client run data to Automate, it creates a new node object which is shown in the Infrastructure -> Client Runs section. It also will show up as an added node in the Compliance -> Scan Jobs -> Nodes Added section but it will not show in the actual list of "added" nodes. This is confusing for users.

To Reproduce

Steps to reproduce the behavior:
(Easiest to see from a fresh automate install)

• Bootstrap a new node and see it report its run data to chef automate
• Total nodes will be shown as 1
• Head over to Compliance -> Scan Jobs -> Nodes Added tab
• All nodes will show 1
• The list of added nodes will be empty.

Expected behavior

The list of "all nodes" should show all added nodes and not all nodes.

Versions (please complete the following information):

• Automate Build Number: 20210504084406

Aha! Link: https://chef.aha.io/epics/SH-E-522