Add time tracking updating via quick actions on work items

What does this MR do and why?

Add time tracking updating via quick actions on work items (#438575 (closed))

Behind feature flag work_items_mvc_2 so no changelog required

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

Screen_Recording_2024-02-13_at_1.16.10_pm

How to set up and validate locally

1. In rails console enable FF

   Feature.enable(:work_items_mvc_2)

2. Visit any issue
3. Create a task from the Child Items widget
4. Open the task
5. Check the time tracking widget in the sidebar works as expected

Related to #438575 (closed)