chore: update AUTH_CIS2_ISSUER_URL for production environment (#1709)

* chore: update AUTH_CIS2_ISSUER_URL for production environment

* fix: remove code comment

Author: chrimesdev

infrastructure/tf-core/environments/production.tfvars

@@ -1234,8 +1234,7 @@ linux_web_app = {
       app_service_plan_key = "NonScaling"
       env_vars = {
         static = {
-          # TODO: Add CIS details when available
-          AUTH_CIS2_ISSUER_URL = "https://am.nhsidentity.spineservices.nhs.uk:443/openam/oauth2/realms/root/realms/NHSIdentity/realms/Healthcare"
+          AUTH_CIS2_ISSUER_URL = "https://am.nhsidentity.spineservices.nhs.uk:443"
           AUTH_CIS2_CLIENT_ID  = "392455101813.apps.national"
           AUTH_TRUST_HOST      = "true"
           NEXTAUTH_URL         = "https://cohort.screening.nhs.uk/api/auth"