### 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.match("obj-success", get_obj_all_positive)
    @markers.aws.validated
    def test_s3_multipart_upload_acls(
        self, s3_bucket, allow_bucket_acl, s3_multipart_upload, snapshot, aws_client
    ):
        # ht
        # > 
        # > 
        # > 
        snapshot.add_transformer(
            [
                snapshot.transform.key_value("DisplayName"),
                snapshot.transform.key_value("ID", value_replacement="owner-id"),
            ]
        )
        aws_client.s3.put_bucket_acl(Bucket=s3_bucket, ACL="public-read")
        response = aws_client.s3.get_bucket_acl(Bucket=s3_bucket)
        snapshot.match("bucket-acl", response)
        def check_permissions(key):
            acl_response = aws_client.s3.get__acl(Bucket=s3_bucket, Key=key)
            snapshot.match(f"permission-{key}", acl_response)
        # perf
        aws_client.s3.put_(Bucket=s3_bucket, Key="acl-key0", Body="something")
        check_permissions("acl-key0")
        s3_multipart_upload(bucket=s3_bucket, key="acl-key1")
        check_permissions("acl-key1")
        s3_multipart_upload(bucket=s3_bucket, key="acl-key2", acl="public-read-write")
        check_permissions("acl-key2")
    @markers.aws.validated
    def test_s3_bucket_acl(self, s3_bucket, allow_bucket_acl, snapshot, aws_client):