bug: head object returns confusing error

[Xuanwo]

ERROR 1105 (HY000): Code: 3003, displayText = unexpected: (op: stat, path: fuse/37/16/_ss/6d2e12ce77154c9b8c939d252e0a4333, source: Response { status: 403, version: HTTP/1.1, headers: {"x-amz-request-id": "8VVJA3JF9G5HAY9R", "x-amz-id-2": "HvGixnFjEs4PvproLJgNTWXiL72i6c2FWVmJtiKa6fWoDUenmoctG2NbR9kg9jY7nFAthitSTk0=", "content-type": "application/xml", "date": "Fri, 18 Mar 2022 07:03:32 GMT", "server": "AmazonS3"}, body: Body(Empty) }).

We need to return meaning error to caller.

[Xuanwo]

head_object will not return a response, this is the best we can do.