Create Images with valid image URL (e2e_be_fe)

1. Create image with cloud image available for openSUSE. http://download.opensuse.org/repositories/Cloud:/Images:/Leap_15.3/images/openSUSE-Leap-15.3.x86_64-NoCloud.qcow2

Expected Results

1. Image should show state as Active.
2. Check the backing image in Longhorn

Known Bugs

https://github.com/harvester/harvester/issues/1269