feat: import File model in zip_split_handle for enhanced functionality

--bug=1057478 --user=刘瑞斌 【知识库】通用知识库上传ZIP文件，分段失败 https://www.tapd.cn/62980211/s/1719181

Author: liuruibin

apps/common/handle/impl/text/zip_split_handle.py

@@ -27,6 +27,7 @@
 from common.handle.impl.text.xls_split_handle import XlsSplitHandle
 from common.handle.impl.text.xlsx_split_handle import XlsxSplitHandle
 from common.utils.common import parse_md_image
+from knowledge.models import File
 
 
 class FileBufferHandle: