### 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,
        s3_client,
        s3_bucket,
        snapshot,
        signature_version,
        patch_s3_skip_signature_validation_false,
    ):
        snapshot.add_transformer(self._get_presigned_snapshot_transformers(snapshot))
        _key = "test-presigned-malformed-policy"
        presigned_client = _s3_client_custom_config(
            Config(signature_version=signature_version),
            endpoint_url=_endpoint_url(),
        )
        presigned_request = presigned_client.generate_presigned_post(