hotfix(publicip): revert back JSON to public_ip

internal/publicip/state/publicip.go

@@ -1,16 +1,16 @@
 package state
 
 import (
-	"github.com/qdm12/gluetun/internal/publicip/ipinfo"
+	"github.com/qdm12/gluetun/internal/models"
 )
 
-func (s *State) GetData() (data ipinfo.Response) {
+func (s *State) GetData() (data models.PublicIP) {
 	s.ipDataMu.RLock()
 	defer s.ipDataMu.RUnlock()
 	return s.ipData.Copy()
 }
 
-func (s *State) SetData(data ipinfo.Response) {
+func (s *State) SetData(data models.PublicIP) {
 	s.ipDataMu.Lock()
 	defer s.ipDataMu.Unlock()
 	s.ipData = data.Copy()