hotfix(publicip): revert back JSON to public_ip

internal/publicip/ipinfo/model.go

@@ -1,6 +1,10 @@
 package ipinfo
 
-import "net"
+import (
+	"net"
+
+	"github.com/qdm12/gluetun/internal/models"
+)
 
 type Response struct {
 	IP       net.IP `json:"ip,omitempty"`
@@ -14,9 +18,18 @@ type Response struct {
 	Timezone string `json:"timezone,omitempty"`
 }
 
-func (r Response) Copy() (copied Response) {
-	copied = r
-	copied.IP = make(net.IP, len(r.IP))
-	copy(copied.IP, r.IP)
-	return copied
+func (r *Response) ToPublicIPModel() (model models.PublicIP) {
+	model = models.PublicIP{
+		IP:           make(net.IP, len(r.IP)),
+		Region:       r.Region,
+		Country:      r.Country,
+		City:         r.City,
+		Hostname:     r.Hostname,
+		Location:     r.Loc,
+		Organization: r.Org,
+		PostalCode:   r.Postal,
+		Timezone:     r.Timezone,
+	}
+	copy(model.IP, r.IP)
+	return model
 }