Support VLAN interface IP collection

On Linux VMs (here with Debian Bookworm), when using interfaces of vlan type, the IPs that are configured on these interfaces should be collected by the agent (and are not as of now).

In /sys/class/net/, the interfaces enX0.${vlan_id} have no device folder / symlink which I guess makes them not considered. The only element I see in this folder that indicates an interface is of vlan type is DEVTYPE=vlan in the first line of uevent.