Update durable tests to use new test framework

Update func durable tests from [here](https://github.com/Azure/azure-functions-core-tools/blob/main/test/Azure.Functions.Cli.Tests/E2E/DurableTests.cs) to use the new testing framework.

Here is an example of the test framework being used: https://github.com/Azure/azure-functions-core-tools/pull/4364