feat(workers): Create a ThreadPool for each worker [fixes NET-688]

[gurinderu]

Description

Create a ThreadPool for each worker.

Motivation

We needed to isolate each worker on a separate CU

Related Issue(s)

NET-688

Proposed Changes

• Added a runtime creation on worker creation
• On the actor creation get a worker runtime handle if it exists
• Introduced a Spawner entity that allows to shift executions on the different pools

Checklist

• The code follows the project's coding conventions and style guidelines.
• All tests related to the changes have passed successfully.
• Documentation has been updated to reflect the changes (if applicable).
• All new and existing unit tests have passed.
• I have self-reviewed my code and ensured its quality.
• I have added/updated necessary comments to aid understanding.

Reviewer Checklist

• Code has been reviewed for quality and adherence to guidelines.
• Tests have been reviewed and are sufficient to validate the changes.
• Documentation has been reviewed and is up to date.
• Any questions or concerns have been addressed.

[linear]

NET-688 Create a ThreadPool for each worker

[folex]

nice!

[folex]

What is enum_dispatch, and how it affects the code?

[gurinderu]

enum_dispatch

https://crates.io/crates/enum_dispatch

Shortly speaking it is a faster version of dynamic dispatch.