### 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_
return {k: v for k, v in param.items() if k.startswith("x-amz") or k in ["content-type"]}
class TestS3:
    @pytest.mark.skipif(condition=TEST_S3_IMAGE, reason="KMS not enabled in S3 image")
    @markers.aws.validated
    @markers.snapshot.skip_snapshot_verify(
        condition=is_v2_provider,
        paths=["$..ServerSideEncryption"],
    )
    def test_copy__kms(self, s3_bucket, kms_create_key, snapshot, aws_client):
        snapshot.add_transformer(snapshot.transform.s3_api())
        
        
        snapshot.add_transformer(
            snapshot.transform.jsonpath(
                "$..CopyResult.ETag", "copy-etag", reference_replacement=False
            )
        )
        snapshot.add_transformer(
            snapshot.transform.jsonpath(
                "$..get-copied-.ETag", "etag", reference_replacement=False
            )
        )
        snapshot.add_transformer(snapshot.transform.key_value("SSEKMSKeyId", "key-id"))
        key_id = kms_create_key()["KeyId"]
        body = "hello world"