Update bitmask-core to send invite token

Follow-Up of: https://0xacab.org/leap/bitmask-vpn/-/issues/920#note_1235659

The API of bitmask-core changed a bit. And there is a small quickfix in the v5 location quality map calculation.

pkg/vpn/menshen/backwards.go

@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"strings"
 
-	"0xacab.org/leap/bitmask-core/models"
 	"0xacab.org/leap/bitmask-vpn/pkg/vpn/bonafide"
+	"0xacab.org/leap/menshen/models"
 )
 
 func NewBonafideGatewayArray(gatewaysV5 []*models.ModelsGateway) []bonafide.Gateway {