### 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_
)
from localstack.aws.api.s3 import Type as GranteeType
from localstack.aws.api.s3 import WebsiteConfiguration
from localstack.aws.handlers import (
    modify_service_response,
    preprocess_request,
    serve_custom_service_request_handlers,
)
from localstack.constants import LOCALHOST_HOSTNAME
from localstack.services.edge import ROUTER
from localstack.services.moto import call_moto
from localstack.services.plugins import ServiceLifecycleHook
from localstack.services.s3.cors import S3CorsHandler
from localstack.services.s3.models import S3Store, get_moto_s3_backend, s3_stores
from localstack.services.s3.notifications import NotificationDispatcher, S3EventNotificationContext
from localstack.services.s3.presigned_url import (
    s3_presigned_url_request_handler,
    s3_presigned_url_response_handler,
    validate_post_policy,
)
from localstack.services.s3.utils import (
    ALLOWED_HEADER_OVERRIDES,
    VALID_ACL_PREDEFINED_GROUPS,
    VALID_GRANTEE_PERMISSIONS,
    _create_invalid_argument_exc,
    capitalize_header_name_from_snake_case,
    get_bucket_from_moto,
    get_header_name,
    get_key_from_moto_bucket,
    is_bucket_name_valid,