fix：“修复微信昵称有表情符号导致绑定微信失败的问题“

src/main/java/com/szwl/controller/TWechatController.java

@@ -144,6 +144,7 @@ public class TWechatController {
                 "&lang=zh_CN";
         JSONObject userInfo = HttpClientUtils.get(userUrl);
         String nickname = userInfo.getString("nickname");
+        nickname = Base64.getEncoder().encodeToString(nickname.getBytes());
         String headimgurl = userInfo.getString("headimgurl");
 
         if (StringUtils.isNotEmpty(openid)) {