[Feature]: Add test of NARRM configuration #716
Description
How will this affect the next version number?
New feature (increment MINOR version)
Is your feature request related to a problem?
Yes, #714
Describe the solution you'd like
Add an e3sm_diags subtask to the weekly testing cfg such that it includes cfg = "e3sm_diags/lat_lon_conus.cfg".
Describe alternatives you've considered
No response
Additional context
Adding this test may increase pre-test zppy runtime and will increase testing runtime itself since more images will need to be checked.