Azure AD v2.0 fails issuer check when creating provider

[Azure AD v2.0](https://docs.microsoft.com/en-us/azure/active-directory/active-directory-v2-tokens) provides OIDC config via:
https://login.microsoftonline.com/common/v2.0/.well-known/openid-configuration

Issuer in the config json is returned as
`https://login.microsoftonline.com/{tenantid}/v2.0`

As a result `NewProvider()` method fails.