### 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_
# If the parent node is actually a list. We should not be trying
        # to serialize it to a dictionary. Instead, return the first element
        # in the list.
        if isinstance(parent_node, list):
            return self._build_name_to_xml_node(parent_node[0])
        xml_dict = {}
        for item in parent_node:
            key = self._node_tag(item)
            if key in xml_dict:
                # If the key already exists, the most natural
                # way to handle this is to aggregate repeated
                # keys into a single list.
                # <foo>1</foo><foo>2</foo> -> {'foo': [Node(1), Node(2)]}
                if isinstance(xml_dict[key], list):
                    xml_dict[key].append(item)
                else:
                    # Convert from a scalar to a list.
                    xml_dict[key] = [xml_dict[key], item]
            else:
                xml_dict[key] = item
        return xml_dict
    e_event_stream(self, requespRequest, shape: Shape) -> Any:
        # TODO handle event streams
        raise NotImplementedError("_create_event_stream")
class BaseJSONRequestParser(RequestParser, ABC):
    """
    The ``BaseJSONRequestParserervice protocols.
    oad / body as JSON.
    """
    TIMESTAMP_FORMAT = "unixtimestamp"