修正HttpClient池Authorization设置错误的bug

Src/GS.Terminal.VisitorSelfService/Logic/GS.Terminal.VisitorSelfService.Logic/Remote/WebApi.cs

@@ -25,6 +25,12 @@ namespace GS.Terminal.VisitorSelfService.Logic.Remote
                 if (!string.IsNullOrEmpty(_token))
                     _client.DefaultRequestHeaders.Add("Authorization", $"Bearer {_token}");
                 return _client;
+            }, (httpclient) =>
+            {
+                var _client = httpclient.Value;
+                _client.DefaultRequestHeaders.Remove("Authorization");
+                if (!string.IsNullOrEmpty(_token))
+                    _client.DefaultRequestHeaders.Add("Authorization", $"Bearer {_token}");
             });
         }
         public static async Task<T> GetTAsync<T>(string service)