### 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_
::
          {
              "1.Name": "MyKey",
              "1.Value": "MyValue",
              "2.Name": ...
          }
        ::
        """
        key_prefix = ""
        # Non-flattened maps have an additional hierarchy level named "entry"
        # https://awslabs.github.io/smithy/1.0/spec/core/xml-traits.html#xmlflattened-trait
        if not shape.serialization.get("flattened"):
            key_prefix += "entry."
        result = {}
        i = 0
        while True:
            i += 1
            # The key and value can be renamed (with their serialization config's "name").
            # By default they are called "key" and "value".
            key_name = f"{key_prefix}{i}.{self._get_serialized_name(shape.key, 'key', node)}"
            value_name = f"{key_prefix}{i}.{self._get_serialized_name(shape.value, 'value', node)}"
            # We process the key and value individually
            k = self._process_member(request, key_name, shape.key, node)
            ode)
            if k is None or v is None:
                # technically, if one exists but not the other, then that would be an invalid request
                break
            result[k] = v
        return result if len(result) > 0 else None
    def _parse_list(