fixed bug[8321]群主转让文案错误，理应是xxx成为了群主，现在显示被xxx移出了会话

core/src/main/java/com/wecloud/im/service/impl/ImGroupServiceImpl.java

@@ -393,7 +393,7 @@ public class ImGroupServiceImpl implements ImGroupService {
         // 操作的client ID
         // 操作的client ID
         Map<String, Object> content = new HashMap<>();
         Map<String, Object> content = new HashMap<>();
         content.put("operator", newGroupOwner.getClientId());
         content.put("operator", newGroupOwner.getClientId());
-        ImMessage imMessage = MessageBuilder.buildEventMessage(MsgTypeEnum.REMOVE_CLIENT_CONVERSATION, imApplication, oldGroupOwnerClient, conversation, JsonUtils.encodeJson(content));
+        ImMessage imMessage = MessageBuilder.buildEventMessage(MsgTypeEnum.CONVERSATION_NEW_CREATOR, imApplication, oldGroupOwnerClient, conversation, JsonUtils.encodeJson(content));
         imMessageService.save(imMessage);
         imMessageService.save(imMessage);
         // 发送给在群内的成员
         // 发送给在群内的成员
         List<ImConversationMembers> existMemberList =
         List<ImConversationMembers> existMemberList =