Low-level errors during UDF execution now fail

Why it matters

Previously, different error codes could be returned when UDFs encountered low-level execution errors, which made error handling and diagnostics more complex. This update standardizes error reporting by using a single, clear error code, simplifying debugging and improving user experience.

How to use it

No specific action is required from users to enable this behavior. When a UDF fails due to a low-level error, ClickHouse will automatically return the UDF_EXECUTION_FAILED error code.