Fix: check the file name length. (#6083)

### What problem does this PR solve?

#6060

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

api/apps/sdk/doc.py

             return get_result(
                 message="No file selected!", code=settings.RetCode.ARGUMENT_ERROR
             )
+        if len(file_obj.filename.encode("utf-8")) >= 128:
+            return get_result(
+                message="File name should be less than 128 bytes.", code=settings.RetCode.ARGUMENT_ERROR
+            )
     '''
     # total size
     total_size = 0
         DocumentService.update_meta_fields(document_id, req["meta_fields"])
 
     if "name" in req and req["name"] != doc.name:
+        if len(req["name"].encode("utf-8")) >= 128:
+            return get_result(
+                message="The name should be less than 128 bytes.",
+                code=settings.RetCode.ARGUMENT_ERROR,
+            )
         if (
                 pathlib.Path(req["name"].lower()).suffix
                 != pathlib.Path(doc.name.lower()).suffix

sdk/python/test/test_http_api/test_file_management_within_dataset/test_upload_documents.py

         # filename_length = 129
         fp = create_txt_file(tmp_path / f"{'a' * (DOCUMENT_NAME_LIMIT - 3)}.txt")
         res = upload_documnets(get_http_api_auth, ids[0], [fp])
-        assert res["code"] == 500
+        assert res["code"] == 101
         assert (
-            res["message"]
-            == f"{'a' * (DOCUMENT_NAME_LIMIT - 3)}.txt: Exceed the maximum length of file name!"
+            res["message"].find("128") >= 0
         )
 
     def test_invalid_dataset_id(self, get_http_api_auth, tmp_path):