Add example tests for Android Auth0 integration

[dowski]

Checklist

• I have looked into the Readme (Base/Kotlin) and have not found a suitable solution or answer.
• I have searched the issues and have not found a suitable solution or answer.
• I have searched the Auth0 Community forums and have not found a suitable solution or answer.
• I agree to the terms within the Auth0 Code of Conduct.

Describe the problem you'd like to have solved

I haven't been able to find any good examples of unit testing an Android app or library that depends on Auth0. The example tests in this repo are the basic stub tests that get generated with a new Android project.

Describe the ideal solution

Can you update the tests in this repo to show how one would test an integration with WebAuthProvider?

Alternatives and current workarounds

No response

Additional context

No response