Add plan_step_name and plan_step_description columns to system.processors_profile_log

Why it matters

This feature enhances query profiling by providing detailed information about each execution plan step directly in the system.processors_profile_log table. It helps users better understand query execution stages and optimize performance.

How to use it

Users can query the system.processors_profile_log system table to access the new plan_step_name and plan_step_description columns as part of their query profiling analysis without any additional configuration.