Add e2e testcase of cellphone login on JH

What does this MR do and why?

Add E2E Testcase of cellphone login in JH.

Details

1. override the fill_in_credential on JH
2. add phone method in runtime user on JH
3. add E2E testcase of user logs in using phone number and logs out

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

/cc @prajnamas