…ctor (juspay#5916)

Modified the get_aggregates_for_payments function to address issue juspay#5916. 

- Replaced the to_not_found_response handler with map_err to handle internal errors during data fetching.
- Ensured that an empty vector returned from the get_intent_status_with_count method is treated as valid and does not result in a "Not Found" error.
- Now, an Internal Server Error (HTTP 500) is returned only when there is an actual problem with fetching data from the database.
- Attached a descriptive error message using attach_printable to provide more context in case of internal errors.

This fix ensures that valid empty results no longer cause false error responses and internal issues are correctly flagged with a 500 error.

… vector Updated the get_aggregates_for_payments function to use change_context to return an Internal Server Error (500) when there's a failure fetching payment intent status. Added a human-readable message for better debugging. Fixes juspay#5916