Azure IDP configuration should provide its userinfo endpoint.

[farmborough]

1. 1. 💥

AzureADIdentityProviderConfiguration should return https://graph.microsoft.com/oidc/userinfo from its getUserProfileUri method but it returns null.

1. 1. 🌄 To Reproduce
      Steps to reproduce the behaviour:
      1. Configure an Azure AD IDP
      2. Invoke its userinfo endpoint via the IDP, e.g. by initiating an auth flow with cloudApp where a client uses the IDP for authentication (make sure you pass openid as a scope or make it default).
      3. See a BadCredentialsException in the gateway log thrown from (AbstractOpenIDConnectAuthenticationProvider.java:243) because of the null userinfo URI.
2. 1. 🌈

Calling Azure AD userinfo should work.

1. 1. Current behaviour

It fails with an exception in logs.

1. 1. ⚠️

Seen in 3.17.3