### 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_
response["ETagHeader"] = key.etag
        if response["StatusCode"] == 303:
            
            try:
                redirect = _create_redirect_for_post_request(
                    base_redirect=context.request.form["success_action_redirect"],
                    bucket=bucket,
                    key=key_name,
                    etag=key.etag,
                )
                response["LocationHeader"] = redirect
            except ValueError:
                
                response["StatusCode"] = 204
        response["LocationHeader"] = response.get(
            "LocationHeader", f"{get_full_default_bucket_location(bucket)}{key_name}"
        )
        if bucket in self.get_store().bucket_versioning_status:
            response["VersionId"] = key.version_id
        self._notify(context, key_name=key_name)
        if context.request.form.get("success_action_status") != "201":
            return response
        response["ETag"] = key.etag
        response["Bucket"] = bucket
        response["Key"] = key_name
        response["Location"] = response["LocationHeader"]
        return response
    @handler("GetObjectAttributes", expand=False)
    def get_object_attributes(