### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When multi uploading a file for Glacier Instant Retrieval, the operation fails at Complete stage with a message claiming storage class not supported.

### Expected Behavior

It works with real S3.

### How are you starting LocalStack?

With the `localstack` script

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

localstack start

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

 ```golang
	b, p := parse1(path)
	cmuI := &awsS3.CreateMultipartUploadInput{
		Bucket:       b,
		Key:          p,
		StorageClass: mtypes.StorageClassGlacierIr,
	}
_, err := client.CreateMultipartUpload(context.Background(), cmuI)

```
and process the upload of the part and then complete

### Environment

```markdown
- OS: Ubuntu 20.04
- LocalStack: pro latest
```


### Anything else?

_No response_
self,
        context: RequestContext,
        request: GetObjectAttributesRequest,
    ) -> GetObjectAttributesOutput:
        bucket_name = request["Bucket"]
        moto_backend = get_moto_s3_backend(context)
        bucket = get_bucket_from_moto(moto_backend, bucket_name)
        key = get_key_from_moto_bucket(moto_bucket=bucket, key=request["Key"])
        object_attrs = request.get("ObjectAttributes", [])
        response = GetObjectAttributesOutput()
        
        if "ETag" in object_attrs:
            response["ETag"] = key.etag.strip('"')
        if "StorageClass" in object_attrs:
            response["StorageClass"] = key.storage_class
        if "ObjectSize" in object_attrs:
            response["ObjectSize"] = key.size
        response["LastModified"] = key.last_modified
        if version_id := request.get("VersionId"):
            response["VersionId"] = version_id
        if key.multipart:
            response["ObjectParts"] = GetObjectAttributesParts(
                TotalPartsCount=len(key.multipart.partlist)
            )
        return response
def validate_bucket_name(bucket: BucketName) -> None: