### 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_
snapshot.add_transformer(
            [
                snapshot.transform.key_value("DisplayName"),
                snapshot.transform.key_value("ID", value_replacement="owner-id"),
            ]
        )
        s3_client.put_bucket_cors(
            Bucket=s3_bucket,
            CORSConfiguration={
                "CORSRules": [
                    {
                        "AllowedMethods": ["GET", "POST", "PUT", "DELETE"],
                        "AllowedOrigins": ["localhost"],
                    }
                ]
            },
        )
        response = s3_client.get_bucket_cors(Bucket=s3_bucket)
        snapshot.match("get-bucket-cors", response)
        result = s3_client.get_bucket_acl(Bucket=s3_bucket)
        snapshot.match("get-bucket-acl", result)
        with 
            s3_client.get_bucket_acl(Bucket="bucket-not-exists")
        snapshot.match("get-bucket-not-exists", e.value.response)
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        condition=is_old_provider,
        paths=["$..VersionId", "$..ContentLanguage", "$..Error.RequestID"],
    )
    def test_s3_uppercase_key_names(self, s3_client, s3_create_bucket, snapshot):