### 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_resource.Object(s3_bucket, "/foo").put(Body="foobar")
        s3_resource.Object(s3_bucket, "bar").put(Body="barfoo")
        s3_resource.Object(s3_bucket, "/bar/foo/").put(Body="test")
        with 
            s3_resource.Object(s3_bucket, "foo").get()
        e.match("NoSuchKey")
        with 
            s3_resource.Object(s3_bucket, "/bar").get()
        e.match("NoSuchKey")
        response = s3_resource.Object(s3_bucket, "/foo").get()
        assert response["Body"].read() == b"foobar"
        response = s3_resource.Object(s3_bucket, "bar").get()
        assert response["Body"].read() == b"barfoo"
        response = s3_resource.Object(s3_bucket, "/bar/foo/").get()
        assert response["Body"].read() == b"test"
    @pytest.mark.aws_validated
    def test_metadata_header_character_decoding(self, s3_client, s3_bucket, snapshot):