### 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_
url = f"{website_url}/actual/key.html"
        response = .get(url, verify=False)
        assert response.status_code == 200
        assert response.text == "key"
        assert "content-type" in response.headers
        assert response.headers["content-type"] == "text/html"
        assert "etag" in response.headers
        assert actual_key_obj["ETag"] in response.headers["etag"]
        # If-N
        response = .get(
            url, headers={"If-None-Match": actual_key_obj["ETag"]}, verify=False
        )
        assert response.status_code == 304
        # key 
        url = f"{website_url}/with-content-type/key.js"
        response = .get(url, verify=False)
        assert response.status_code == 200
        assert response.text == "some js"
        assert "content-type" in response.headers
        assert response.headers["content-type"] == "application/javascript; charset=utf-8"
        assert "etag" in response.headers
        assert response.headers["etag"] == with_content_type_obj["ETag"]
        # inde
        url = f"{website_url}/test"
        response = .get(url, verify=False)
        assert response.status_code == 200
        assert response.text == "index"
        assert "content-type" in response.headers
        assert "text/html" in response.headers["content-type"]
        assert "etag" in response.headers