### 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_
snapshot.add_transformer(snapshot.transform.key_value("Name"))
        for i in range(3):
            aws_client.s3.put_(Bucket=s3_bucket, Key=f"key{i}", Body="123")
        response = aws_client.s3.list_s_v2(Bucket=s3_bucket)
        snapshot.match("list-obj", response)
        s3_empty_bucket(s3_bucket)
        response = aws_client.s3.list_s_v2(Bucket=s3_bucket)
        snapshot.match("list-obj-after-empty", response)
class TestS3MultiAccounts:
    @pytest.fixture
    def primary_client(self, aws_client):
        return aws_client.s3
    @pytest.fixture
    def secondary_client(self, secondary_aws_client):
        """
        Create a boto client with secondary test credentials and region.
        """
        return secondary_aws_client.s3
    @markers.aws.unknown
    def test_shared_bucket_namespace(self, primary_client, secondary_client, cleanups):
        bucket_name = short_uid()
        # Ensu
        create_s3_bucket(bucket_name=bucket_name, s3_client=primary_client)