Maint: only internal/netlink depends on github.com/vishvananda/netlink

internal/wireguard/netlinker.go

@@ -1,6 +1,6 @@
 package wireguard
 
-import "github.com/vishvananda/netlink"
+import "github.com/qdm12/gluetun/internal/netlink"
 
 //go:generate mockgen -destination=netlinker_mock_test.go -package wireguard . NetLinker
 
@@ -9,4 +9,6 @@ type NetLinker interface {
 	RouteAdd(route *netlink.Route) error
 	RuleAdd(rule *netlink.Rule) error
 	RuleDel(rule *netlink.Rule) error
+	LinkByName(name string) (link netlink.Link, err error)
+	LinkSetUp(link netlink.Link) error
 }