### 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 botocore import UNSIGNED
from botocore.auth import SigV4Auth
from botocore.client import Config
from botocore.exceptions import ClientError
from zoneinfo import ZoneInfo
import localstack.config
from localstack import config
from localstack.aws.api.lambda_ import Runtime
from localstack.aws.api.s3 import StorageClass
from localstack.config import LEGACY_V2_S3_PROVIDER, S3_VIRTUAL_HOSTNAME
from localstack.constants import (
    AWS_REGION_US_EAST_1,
    LOCALHOST_HOSTNAME,
    SECONDARY_TEST_AWS_ACCESS_KEY_ID,
    SECONDARY_TEST_AWS_REGION_NAME,
    SECONDARY_TEST_AWS_SECRET_ACCESS_KEY,
    TEST_AWS_ACCESS_KEY_ID,
    TEST_AWS_REGION_NAME,
    TEST_AWS_SECRET_ACCESS_KEY,
)
from localstack.services.s3 import constants as s3_constants
from localstack.services.s3.utils import (
    RFC1123,
    etag_to_base_64_content_md5,
    parse_expiration_header,
    rfc_1123_datetime,
)
from localstack.testing.aws.util import is_aws_cloud
from localstack.testing.pytest import markers
from localstack.testing.snapshots.transformer import RegexTransformer