### 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_
_key = "key-to-delete-trailing-slash"
        # crea
        aws_client.s3.put_(Bucket=s3_bucket, Key=_key, Body=b"123")
        s3_http_client = aws_http_client_factory("s3", signer_factory=SigV4Auth)
        # Endp
        bucket_url = f"{_bucket_url(s3_bucket)}/?delete&x-id=Deletes"
        delete_body = f"""<Delete>
            <>
                <Key>{_key}</Key>
             </>
        </Delete>
        """
        # Post 
        resp = s3_http_client.post(bucket_url, data=delete_body)
        assert resp.status_code == 200, (resp.content, resp.headers)
        resp_dict = xmltodict.parse(resp.content)
        assert "DeleteResult" in resp_dict
        assert resp_dict["DeleteResult"]["Deleted"]["Key"] == _key
    @markers.aws.validated
    @pytest.mark.xfail(reason="Behaviour not implemented yet")
    def test_complete_multipart_parts_checksum(self, s3_bucket, snapshot, aws_client):