TW and MicroOS image sizes return 0 size

Raised by CI on any new incomming PR

```
The following files are reporting 0 size from the repos:
/tumbleweed/appliances/openSUSE-MicroOS.x86_64-VMware.vmdk.xz
/tumbleweed/appliances/openSUSE-MicroOS.x86_64-ContainerHost-VMware.vmdk.xz
/tumbleweed/appliances/openSUSE-Tumbleweed-Minimal-VM.x86_64-VMware.vmdk.xz
```

Should we drop these records @DimStar77 @sysrich ?