Allow Ray Serve models to propagate errors

[dj013]

Description

Propagate errors from the Ray Serve model back to the end-user.

Similar to http_error utility in mindsdb/mindsdb/api/http/utils.py, this PR enables Ray Serve models to propagate errors in a way that makes them easily viewable in the GUI.

Type of change

• ⚡ New feature (non-breaking change which adds functionality)
• 📄 This change requires a documentation update

Verification Process

To ensure the changes are working as expected:

• Test Location: Specify the URL or path for testing.
• Verification Steps: Outline the steps or queries needed to validate the change. Include any data, configurations, or actions required to reproduce or see the new functionality.

Additional Media:

• I have attached a brief loom video or screenshots showcasing the new functionality or change.

Checklist:

• My code follows the style guidelines(PEP 8) of MindsDB.
• I have appropriately commented on my code, especially in complex areas.
• Necessary documentation updates are either made or tracked in issues.
• Relevant unit and integration tests are updated or added.