### 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_
from localstack.testing.snapshots.transformer_utility import TransformerUtility
from localstack.utils import testutil
from localstack.utils.aws.request_context import mock_aws_request_headers
from localstack.utils.aws.resources import create_s3_bucket
from localstack.utils.files import load_file
from localstack.utils.run import run
from localstack.utils.server import http2_server
from localstack.utils.strings import (
    checksum_crc32,
    checksum_crc32c,
    hash_sha1,
    hash_sha256,
    long_uid,
    short_uid,
    to_bytes,
    to_str,
)
from localstack.utils.sync import retry
from localstack.utils.testutil import check_expected_lambda_log_events_length
from localstack.utils.urls import localstack_host as get_localstack_host
from tests.aws.services.s3.conftest import TEST_S3_IMAGE
if TYPE_CHECKING:
    from mypy_boto3_s3 import S3Client
LOG = logging.getLogger(__name__)
HEADER_TRANSFORMER = [
    TransformerUtility.jsonpath("$..HTTPHeaders.date", "date", reference_replacement=False),
    TransformerUtility.jsonpath(
        "$..HTTPHeaders.last-modified", "last-modified", reference_replacement=False
    ),
    TransformerUtility.jsonpath("$..HTTPHeaders.server", "server", reference_replacement=False),