Restart Interrupted Workflow - Alteration

Implement a new [alteration type](https://v3.elsaworkflows.io/docs/alterations/introduction#alteration-types) called RestartWorkflow.

This alteration accepts the following arguments:

- Input (a dictionary to send to the workflow when being restarted)
- ExecutionMode: Synchronous or Asynchronous (determines whether the workflow executes as part of the current request or if it should be dispatched for execution from a background worker).

If the user wants to start the workflow from the start, or any other point in the workflow, this alteration can be used in conjunction with the existing [ScheduleActivity](https://v3.elsaworkflows.io/docs/alterations/introduction#alteration-types) alteration type.