feat: match network interfaces by their altnames

[notpeelz]

This change allows matching interfaces by their altnames, e.g.

$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp6s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group 50 qlen 1000
    link/ether a8:5e:45:b5:ed:44 brd ff:ff:ff:ff:ff:ff
    altname enxa85e45b5ed44

{
  "network": {
    "interface": "enxa85e45b5ed44",
    // ...
  },
}