fix: strip whitespace from document filename in Content-Disposition header

--bug=1065792@tapd-62980211 --user=刘瑞斌 【知识库】文档名中有 / ，导出zip格式会报错 https://www.tapd.cn/62980211/s/1837025

Author: liuruibin

apps/knowledge/serializers/document.py

@@ -601,7 +601,7 @@ def export_zip(self, with_valid=True):
 
             workbook = DocumentSerializers.Operate.get_workbook(data_dict, document_dict)
             response = HttpResponse(content_type='application/zip')
-            response['Content-Disposition'] = f'attachment; filename="{document.name}.zip"'
+            response['Content-Disposition'] = f'attachment; filename="{document.name.strip()}.zip"'
             zip_buffer = io.BytesIO()
             with TemporaryDirectory() as tempdir:
                 knowledge_file = os.path.join(tempdir, 'document.xlsx')