提问参考模版：
- nebula 版本：3.5
- nebula-studio 版本：3.7.0
- 部署方式：单机
- 安装方式：Docker
- 是否上生产环境 N
- 硬件信息
- 磁盘（ 推荐使用 SSD）
- CPU、内存信息
- 问题的具体描述
因为需要导入的文件超出本地文件最大限制200M，在导入数据选择基于sftp的数据源文件时出现问题 - 相关的 meta / storage / graph info 日志信息
以下是在终端访问的sftp截图，sftp根目录下是有文件存在，但是studio中确提示报错
{
"@timestamp": "2023-06-09T14:45:05.950+08:00",
"level": "error",
"content": "servicecontext.go:53 [/api/datasources] request failed 40004000(ErrBadRequest::connect the sftp client error: failed to dial SSH server: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none password], no supported methods remain):connect the sftp client error: failed to dial SSH server: ssh: handshake failed: ssh: unable to authenticate, attempted methods [none password], no supported methods remain\ngithub.com/vesoft-inc/nebula-studio/server/api/studio/pkg/ecode.WithErrorMessage\n\t/__w/nebula-studio/nebula-studio/source/nebula-graph-studio/server/api/studio/pkg/ecode/codes.go:57\ngithub.com/vesoft-inc/nebula-studio/server/api/studio/internal/service.(*datasourceService).Add\n\t/__w/nebula-studio/nebula-studio/source/nebula-graph-studio/server/api/studio/internal/service/datasource.go:65\ngithub.com/vesoft-inc/nebula-studio/server/api/studio/internal/logic/datasource.(*DatasourceAddLogic).DatasourceAdd\n\t/__w/nebula-studio/nebula-studio/source/nebula-graph-studio/server/api/studio/internal/logic/datasource/datasourceaddlogic.go:28\ngithub.com/vesoft-inc/nebula-studio/server/api/studio/internal/handler/datasource.DatasourceAddHandler.func1\n\t/__w/nebula-studio/nebula-studio/source/nebula-graph-studio/server/api/studio/internal/handler/datasource/datasourceaddhandler.go:30\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\ngithub.com/vesoft-inc/go-pkg/middleware.ReserveResponseWriter.func1.1\n\t/github/home/go/pkg/mod/github.com/vesoft-inc/go-pkg@v0.0.0-20230307111816-a43d6a342d23/middleware/keep_request_responce.go:74\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\ngithub.com/vesoft-inc/go-pkg/middleware.ReserveRequest.func1.1\n\t/github/home/go/pkg/mod/github.com/vesoft-inc/go-pkg@v0.0.0-20230307111816-a43d6a342d23/middleware/keep_request_responce.go:49\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\ngithub.com/vesoft-inc/nebula-studio/server/api/studio/pkg/auth.AuthMiddlewareWithCtx.func1.1\n\t/__w/nebula-studio/nebula-studio/source/nebula-graph-studio/server/api/studio/pkg/auth/authorize.go:200\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\ngithub.com/zeromicro/go-zero/rest/handler.GunzipHandler.func1\n\t/github/home/go/pkg/mod/github.com/zeromicro/go-zero@v1.3.3/rest/handler/gunziphandler.go:26\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\ngithub.com/zeromicro/go-zero/rest/handler.MaxBytesHandler.func2.1\n\t/github/home/go/pkg/mod/github.com/zeromicro/go-zero@v1.3.3/rest/handler/maxbyteshandler.go:24\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\ngithub.com/zeromicro/go-zero/rest/handler.MetricHandler.func1.1\n\t/github/home/go/pkg/mod/github.com/zeromicro/go-zero@v1.3.3/rest/handler/metrichandler.go:21\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\ngithub.com/zeromicro/go-zero/rest/handler.RecoverHandler.func1\n\t/github/home/go/pkg/mod/github.com/zeromicro/go-zero@v1.3.3/rest/handler/recoverhandler.go:21\nnet/http.HandlerFunc.ServeHTTP\n\t/__w/_tool/go/1.19.2/x64/src/net/http/server.go:2109\ngithub.com/zeromicro/go-zero/rest/handler.(*timeoutHandler).ServeHTTP.func1\n\t/github/home/go/pkg/mod/github.com/zeromicro/go-zero@v1.3.3/rest/handler/timeouthandler.go:79\nruntime.goexit\n\t/__w/_tool/go/1.19.2/x64/src/runtime/asm_amd64.s:1594",
"trace": "59caf2ef8932025f05270e7e64510058",
"span": "841970e3a97f3959"
}
