SQL lab returns NULL values when there is data with complex maps.

### Bug description

When using SQLLab for querying map returns NULL in case of special characters.
Example query:
```
SELECT *
FROM (
VALUES (
MAP(
ARRAY['key'],
ARRAY['{"key2":[string]}']
)
)
) AS t(payload);

```
When running this through Athena the result is {key={"key2":[string]}}
However in SQLLab it returns NULL

Similar issue was recently closed:
https://github.com/apache/superset/issues/37363

This is still an issue in Superset 6.1.0

### Screenshots/recordings

_No response_

### Superset version

6.1.0

### Python version

3.12

### Node version

I don't know

### Browser

Not applicable

### Additional context

_No response_

### Checklist

- [x] I have searched Superset docs and Slack and didn't find a solution to my problem.
- [x] I have searched the GitHub issue tracker and didn't find a similar bug report.
- [x] I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section.

Start in SQLLab by running the provided Athena query and comparing its result with the expected map value. Review the related issue #37363 for context, then trace where complex map results are handled; done means the query displays {key={"key2":[string]}} instead of NULL in Superset 6.1.0.

Written by the indexing model from the issue text.