Description of problem:

Servicenow plugin has incorrect support level in Extensions.

Scaffolder servicenow plugin has incorrect support level in Extensions.

Update by fixing support level in overlays, set it to `community`

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

 # <steps>

Actual results:

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Build Details:

Additional info (Such as Logs, Screenshots, etc):