### 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_
"""
        Moto tries to parse the TagSet and then iterate of it, not checking if it returned something
        Potential to be an easy upstream fix
        """
        try:
            tags: Dict[str, str] = fn(*args, **kwargs)
        except TypeError:
            tags = {}
        return tags
    @patch(moto_s3_responses.S3Response._cors_from_body)
    def _fix_parsing_cors_rules(fn, *args, **kwargs) -> List[Dict]:
        """
        Fix parsing of CORS Rules from moto, you can set empty origin in AWS. Replace None by an empty string
        """
        cors_rules = fn(*args, **kwargs)
        for rule in cors_rules:
            if rule["AllowedOrigin"] is None:
                rule["AllowedOrigin"] = ""
        return cors_rules
    @patch(moto_s3_responses.S3Response.is_delete_keys)
    def s3_response_is_delete_keys(fn, self):