[Task architecture] - Task restartability and NodeType upgradability

[ss-es]

What is this task and why do we need to work on it?

To simplify the upgrade process and make it less error prone, we would like to make all consensus tasks restartable, and allow for tasks to uniformly modify their NodeType at runtime.

What work will need to be done to complete this task?

• [Task architecture] - Make TaskState object safe #3208
• [Task architecture] - Add versioning to the application interface #3212
• [Task architecture] - Implement methods in SystemContextHandle to stop, transition and restart consensus #3213
• [Task architecture] - Simplify the upgrade process for sequencer upgrades #3214

Are there any other details to include?

No response

What are the acceptance criteria to close this issue?

tbd

Branch work will be merged to (if not the default branch)

No response