### 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 not key_object or isinstance(key_object, FakeDeleteMarker) or not key_object._expiry:
        return False
    return key_object._expiry <= datetime.datetime.now(key_object._expiry.tzinfo)
def is_bucket_name_valid(bucket_name: str) -> bool:
    """
    ref. https://docs.aws.amazon.com/AmazonS3/latest/userguide/bucketnamingrules.html
    """
    return True if re.match(BUCKET_NAME_REGEX, bucket_name) else False
def is_canned_acl_bucket_valid(canned_acl: str) -> bool:
    return canned_acl in VALID_CANNED_ACLS_BUCKET
def get_header_name(capitalized_field: str) -> str: