When logging in to staging, success message should be "Logged in successfully to identity.api.stage.openshift.com"

[craicoverflow]

Description

The success message when logging into does not use the API gateway value, it uses a hard-coded value, when printing to the console.

Version: all

Steps to reproduce

Log in to staging: rhoas login --api-gateway=stg

Expected vs actual behaviour

Expected:

❯ ./rhoas login --api-gateway=stg
Logging in...

...

Logged in successfully to identity.api.stage.openshift.com

Actual:

❯ ./rhoas login --api-gateway=stg
Logging in...

...

Logged in successfully to identity.api.openshift.com