### 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_
if os.environ.get("TEST_TARGET") == "AWS_CLOUD":
        return boto3.client("s3", config=conf, endpoint_url=endpoint_url)
    # TODO in future this should work with aws_stack.create_external_boto_client
    #      currently it doesn't as authenticate_presign_url_signv2 requires the secret_key to be 'test'
    # return aws_stack.create_external_boto_client(
    #     "s3",
    #     config=conf,
    #     endpoint_url=endpoint_url,
    #     aws_access_key_id=TEST_AWS_ACCESS_KEY_ID,
    # )
    return boto3.client(
        "s3",
        endpoint_url=endpoint_url,
        config=conf,
        aws_access_key_id=TEST_AWS_ACCESS_KEY_ID,
        aws_secret_access_key=TEST_AWS_SECRET_ACCESS_KEY,
    )
def _endpoint_url(region: str = "", localstack_host: str = None) -> str:
    if not region:
        region = config.AWS_REGION_US_EAST_1
    if os.environ.get("TEST_TARGET") == "AWS_CLOUD":
        if region == "us-east-1":
            return "https://s3.amazonaws.com"
        else:
            return f"http://s3.{region}.amazonaws.com"
    if region == "us-east-1":
        return f"{config.get_edge_url(localstack_hostname=localstack_host or S3_VIRTUAL_HOSTNAME)}"
    return config.get_edge_url(f"s3.{region}.{LOCALHOST_HOSTNAME}")
def _bucket_url(bucket_name: str, region: str = "", localstack_host: str = None) -> str: