Merge pull request #466 from 0RAJA/bugfix/get_collector_tail_log

fix: 日志平台-获取最新上报的数据-响应数据格式异常 --bug=134833421

Author: 0RAJA

src/backend/api/bk_log/serializers.py

@@ -199,7 +199,7 @@ class CollectorLogOriginSerializer(serializers.Serializer):
     gseindex = serializers.IntegerField(required=False, allow_null=True)
     hostname = serializers.CharField(required=False, allow_null=True, allow_blank=True)
     ip = serializers.CharField(required=False, allow_null=True, allow_blank=True)
-    items = CollectorLogItemsSerializer(many=True)
+    items = CollectorLogItemsSerializer(required=False, many=True)
     time = serializers.IntegerField(required=False, allow_null=True)
     utctime = serializers.CharField(required=False, allow_null=True, allow_blank=True)