Fix Email subject calculation

Azure/Azure-App-Expiration.ps1

@@ -270,7 +270,7 @@ $htmlReport = @"
 #region send reports and generate summary report
     # Send the report via email
     $Status = "OK"
-    switch ($licenseUsageData | Select-Object -ExpandProperty LicenseStatus) {
+    switch ($AppClientSecretsDetails.status + $AppCertificateDetails.status) {
         { $_ -contains "ERROR" } { $Status = "ERROR"; break }
         { $_ -contains "WARNING" } { $Status = "WARNING"; break }
     }