### 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_
src_key = "key-to-be-copied"
        client.put_(Bucket=bucket_name, Key=src_key, Body=b"test-data")
        with pytest.raises(ClientError) as e:
            client.copy_(
                Bucket=bucket_name,
                Key="copy-test-sse-validate-kms-key-no-check",
                CopySource={"Bucket": bucket_name, "Key": src_key},
                ServerSideEncryption="aws:kms",
                SSEKMSKeyId="fake-key-id",
            )
        snapshot.match("copy-obj-wrong-kms-key", e.value.response)
    @pytest.mark.skipif(condition=TEST_S3_IMAGE, reason="KMS not enabled in S3 image")
    @markers.aws.validated
    @markers.snapshot.skip_snapshot_verify(
        paths=[
            "$..ETag",  # the 
        ]
    )
    def test_s3_sse_validate_kms_key_state(
        self, s3_bucket, kms_create_key, monkeypatch, snapshot, aws_client
    ):
        snapshot.add_transformer(snapshot.transform.key_value("Description"))
        data = b"test-sse"
        # crea
        kms_key = kms_create_key()
        # snap
        snapshot.match("create-kms-key", kms_key)
        key_name = "put--with-sse"
        put__with_sse = aws_client.s3.put_(
            Bucket=s3_bucket,