### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When folder names contain a space then `listObjects` returns names without `/` at the end. Without space it works fine.

### Expected Behavior

Folders containing space in the name are returned with `/` at the end.

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

awslocal s3api put-object --bucket bucket-name --key "folder name/"

awslocal s3api list-objects --bucket bucket-name
```
{
    "Contents": [
        {
            "Key": "folder name",
            "LastModified": "2023-12-11T10:15:20.000Z",
            "ETag": "\"d41d8cd98f00b204e9800998ecf8427e\"",
            "Size": 0,
            "StorageClass": "STANDARD",
            "Owner": {
                "DisplayName": "webfile",
                "ID": "75aa57f09aa0c8caeab4f8c24e99d10f8e7faeebf76c078efc7c6caea54ba06a"
            }
        }
    ],
    "RequestCharged": null
}
```


### Environment

```markdown
- OS: Linux Mint 21.2
- LocalStack: localstack/localstack:3.0
```


### Anything else?

_No response_
endpoint_url=s3_endpoint_path_s,
        )
        upload_id = client.create_multipart_upload(
            Bucket=bucket_name,
            Key=_key,
        )["UploadId"]
        data = to_bytes("hello this is a upload test")
        upload_file_ = BytesIO(data)
        signed_url = _generate_presigned_url(
            client,
            {
                "Bucket": bucket_name,
                "Key": _key,
                "UploadId": upload_id,
                "PartNumber": 1,
            },
            expires=4,
            client_method="upload_part",
        )
        response = .put(signed_url, data=upload_file_)
        assert response.status_code == 200
        multipart_upload_parts = [{"ETag": response.headers["ETag"], "PartNumber": 1}]
        response = client.complete_multipart_upload(
            Bucket=bucket_name,
            Key=_key,
            MultipartUpload={"Parts": multipart_upload_parts},
            UploadId=upload_id,
        )
        assert response["ResponseMetadata"]["HTTPStatusCode"] == 200
        simple_params = {"Bucket": bucket_name, "Key": _key}