feat: Update ClientId PreProd UI (#1768)

Update preprod.tfvars

Author: Warren-Pitterson

infrastructure/tf-core/environments/preprod.tfvars

@@ -1209,7 +1209,7 @@ linux_web_app = {
       env_vars = {
         static = {
           AUTH_CIS2_ISSUER_URL = "https://am.nhsint.auth-ptl.cis2.spineservices.nhs.uk:443"
-          AUTH_CIS2_CLIENT_ID  = "5780695865.cohort_manager_preprod.b099494b-7c49-4d78-9e3c-3a801aac691b.apps"
+          AUTH_CIS2_CLIENT_ID  = "8616441398.cohort-pre.b099494b-7c49-4d78-9e3c-3a801aac691b.apps"
           AUTH_TRUST_HOST      = "true"
           NEXTAUTH_URL         = "https://cohort-pre.screening.nhs.uk/api/auth"
           SERVICE_NAME         = "Cohort Manager"