Config File warning during CI

[bitwes]

Per this comment

Now I get this in CI :(

17:53:15 Godot Engine v4.2.1.stable.official.b09f793f5 - https://godotengine.org/
17:53:19 ERROR: Config File "user://gut_temp_directory/gut_editor_config.json" does not exist when opening the editor to do asset importing

It doesn't seem to break anything but maybe it could be WARNING ?
Godot already has way too many false positive ERROR: printouts

Originally posted by @jamie-pate in #473 (comment)

[bitwes]

This should be a warning and not an error. Maybe it should be displayed in the GUT Panel instead of being printed.