### 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_
for encoding in None, "gzip":
            # put 
            _key = "key-by-hostname"
            aws_client.s3.put_(
                Bucket=s3_bucket,
                Key=_key,
                Body="something",
                ContentType="text/html; charset=utf-8",
            )
            url = aws_client.s3.generate_presigned_url(
                "delete_", Params={"Bucket": s3_bucket, "Key": _key}
            )
            # get 
            headers = {}
            if encoding:
                headers["Accept-Encoding"] = encoding
            response = .delete(url, headers=headers, verify=False)
            assert not response.content
            assert response.status_code == 204
            # AWS 
            assert response.headers.get("content-length") in [
                "0",
                None,
            ], f"Unexpected content-length in headers {response.headers}"
    @markers.aws.validated
    def test_head_has_correct_content_length_header(self, s3_bucket, aws_client):