### 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 timestamp_format is None:
            timestamp_format = self.TIMESTAMP_FORMAT
        timestamp_format = timestamp_format.lower()
        converter = getattr(self, "_timestamp_%s" % timestamp_format)
        final_value = converter(value)
        return final_value
    @staticmethod
    def _timestamp_iso8601(date_string: str) -> datetime.datetime:
        return dateutil.parser.isoparse(date_string)
    @staticmethod
    def _timestamp_unixtimestamp(timestamp_string: str) -> datetime.datetime:
        return datetime.datetime.utcfromtimestamp(int(timestamp_string))
    @staticmethod
    def _timestamp_rfc822(datetime_string: str) -> datetime.datetime:
        return parsedate_to_datetime(datetime_string)
    @staticmethod
    def _parse_header_map(shape: Shape, headers: dict) -> dict:
        # Note that headers are case insensitive, so we .lower() all header names and header prefixes.
        parsed = {}
        prefix = shape.serialization.get("name", "").lower()
        for header_name, header_value in headers.items():
            if header_name.lower().startswith(prefix):
                # The key name inserted into the parsed hash strips off the prefix.
                name = header_name[len(prefix) :]
                parsed[name] = header_value
        return parsed
class QueryRequestParser(RequestParser):