Enable task hubs for Durable E2E tests to make each test run unique

[Francisco-Gamino]

Enable task hubs for Durable E2E tests to make each test run unique. For more information on this, please see https://docs.microsoft.com/en-us/azure/azure-functions/durable/durable-functions-task-hubs?tabs=csharp

"A task hub in Durable Functions is a logical container for Azure Storage resources that are used for orchestrations. Orchestrator and activity functions can only interact with each other when they belong to the same task hub.

If multiple function apps share a storage account, each function app must be configured with a separate task hub name. A storage account can contain multiple task hubs."