DB: migration for remote_development_agent_configs table with two new fields

MR: add migration to include max_hours_before_termi... (!157795 - merged)

Description

For the table remote_development_agent_configs table, we would like to add 2 new fields default_max_hours_before_termination and max_hours_before_termination_limit .

This issue is just for DB migration for this table, all the application layer code changes will be in another followup issue, here

Acceptance Criteria

• 2 new integer fields default_max_hours_before_termination and max_hours_before_termination_limit are added in the remote_development_agent_configs table.