### 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_
s3_client.put_(Bucket=s3_bucket, Key="mykey", Body=body)
        response = s3_client.get_(Bucket=s3_bucket, Key="mykey")
        snapshot.match("get-", response)
        response = s3_client.copy_(
            Bucket=s3_bucket,
            CopySource=f"{s3_bucket}/mykey",
            Key="copiedkey",
            BucketKeyEnabled=True,
            SSEKMSKeyId=key_id,
            ServerSideEncryption="aws:kms",
        )
        snapshot.match("copy-", response)
        response = s3_client.get_(Bucket=s3_bucket, Key="copiedkey")
        snapshot.match("get-copied-", response)
    @pytest.mark.aws_validated
    def test_region_header_exists(self, s3_client, s3_create_bucket, snapshot):
        snapshot.add_transformer(snapshot.transform.s3_api())
        bucket_name = s3_create_bucket(
            CreateBucketConfiguration={"LocationConstraint": "eu-west-1"},
        )
        response = s3_client.head_bucket(Bucket=bucket_name)
        assert response["ResponseMetadata"]["HTTPHeaders"]["x-amz-bucket-region"] == "eu-west-1"
        snapshot.match("head_bucket", response)
        response = s3_client.list_s_v2(Bucket=bucket_name)
        assert response["ResponseMetadata"]["HTTPHeaders"]["x-amz-bucket-region"] == "eu-west-1"
        snapshot.match("list_s_v2", response)
    @pytest.mark.aws_validated
    
    @pytest.mark.skip_snapshot_verify(paths=["$..Prefix", "$..list-buckets.Buckets"])
    def test_delete_bucket_with_content(self, s3_client, s3_resource, s3_bucket, snapshot):