Implement Redis Queue for Persistent Task

[linznin]

Why are these changes needed?

This PR introduces Redis as an external storage mechanism for task queuing in Autogen's Distributed Agent Runtime. The existing asyncio.Queue implementation does not persist tasks across service restarts, leading to potential loss of in-progress tasks. By integrating Redis, tasks and agent states can be preserved beyond service restarts, improving reliability and scalability.

Related issue number

Closes #5327

Checks

• I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://microsoft.github.io/autogen/docs/Contribute#documentation to build and test documentation locally.
• I've added tests (if relevant) corresponding to the changes introduced in this PR.
• I've made sure all auto checks have passed.

[jackgerrits]

Are you still interested in working on this @linznin? It looks like it is partially implemented

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[linznin]

I have implemented most of the functionality, but I encountered an issue where tasks are not completing properly. I'm currently investigating whether this is due to issues with task reception. However, I haven't had enough time to fully resolve it yet, so I will need more time to complete the implementation.

[ekzhu]

Thanks for the update. Once the maintainers team get to work on extending the runtime we will come back to this.