Overview:

Upon attempting to add a new printer in KDE Plasma System Settings, the user is
denied permission to do so.

Steps to Reproduce:
1) Open System Settings
2) Select Printers
3) Click 'Click here to add a new printer)


Actual Results: 
The window that appears returns no printers and says at the top: "Failed to get
a list of devices: 'Forbidden'"

Expected Results:
The window returns a list of printers and allows you to add them

Build date: openSUSE Kalpa 20230619

Additional Information:
* This does occur on openSUSE Aeon; the built in printer settings work as
expected.
* Currently this can be worked around by navigating to https://localhost:631
and adding a printer through the CUPS interface, logging in as the root user
when prompted. This implies that it is a permissions issue.
* This bug also occurs in openSUSE Tumbleweed.