### 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_
)
        # put 
        response = .post(
            presigned_request["url"],
            data=presigned_request["fields"],
            files={"file": "test-body-tagging"},
            verify=False,
        )
        if tagging == "not-xml":
            assert response.status_code == 400
            snapshot.match("tagging-error", xmltodict.parse(response.content))
            with pytest.raises(ClientError) as e:
                aws_client.s3.get__tagging(Bucket=s3_bucket, Key=_key)
            e.match("NoSuchKey")
        else:
            assert response.status_code == 204
            tagging = aws_client.s3.get__tagging(Bucket=s3_bucket, Key=_key)
            snapshot.match("get-tagging", tagging)
    @markers.aws.validated
    @markers.snapshot.skip_snapshot_verify(
        condition=is_v2_provider,
        paths=["$..ServerSideEncryption"],
    )
    @markers.snapshot.skip_snapshot_verify(
        paths=[
            "$..ContentLength",
            "$..ETag",
        ],  # FIXME: in CI, it fails sporadically and the form is empty
    )
    def test_post__with_metadata(self, s3_bucket, aws_client, snapshot):