Update graphql fields for workspace agent config

What does this MR do and why?

Issue: GraphQL: Add sudo access fields (#493823 - closed)

Update graphql fields for workspace agent config to add the new fields which were added as part of Sudo access in a workspace (&13983)

The validations at the GraphQL field level are kept at a minimum since all the required validations are already present at the model level.

MR acceptance checklist

Please evaluate this MR against the MR acceptance checklist. It helps you analyze changes to reduce risks in quality, performance, reliability, security, and maintainability.

Screenshots or screen recordings

Screenshots are required for UI changes, and strongly recommended for all other merge requests.

Before	After

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.