Create Identity e2e tests for running in Azure Functions

[joshfree]

Tracking item to create new /sdk/e2e Azure.Identity smoke tests for running in Azure Functions hosted environment.

1. Add new /sdk/e2e tests for Azure Functions
2. Update Parent issue Automate Azure Functions testing azure-sdk#899 with instructions for Test team

/cc @danieljurek

[antkmsft]

// NOTE: Azure Functions is Managed Identity Credential, and we do have an E2E test written for ManagedIdentityCredential: https://github.com/Azure/azure-sdk-for-cpp/blob/b54d509c72fb76598832bcf1fcd5c4a89b245782/sdk/identity/azure-identity/test/e2e/azure_identity_e2e_test.cpp

[github-actions]

Hi @joshfree, we deeply appreciate your input into this project. Regrettably, this issue has remained inactive for over 2 years, leading us to the decision to close it. We've implemented this policy to maintain the relevance of our issue queue and facilitate easier navigation for new contributors. If you still believe this topic requires attention, please feel free to create a new issue, referencing this one. Thank you for your understanding and ongoing support.