DB: Add default_resources_per_workspace_container, max_resources_per_workspace to remote_development_agent_configs table

MR: Default_resources_per_workspace_container, max_... (!136853 - merged)

Description

Add two new DB text fields - default_resources_per_workspace_container and max_resources_per_workspace. These are non-required fields and default would be {}.

Acceptance Criteria

• Two new jsonb fields are added to the remote_development_agent_configs table.
• These fields are not allowed to be NULL.
• The default value of these fields is {}.