Add warning/exit for Az.Resources 5.3.0 service principal provisioning error (Azure#23037)

Co-authored-by: Ben Broderick Phillips <[email protected]>

Author: azure-sdk

eng/common/TestResources/New-TestResources.ps1

@@ -143,6 +143,14 @@ function Retry([scriptblock] $Action, [int] $Attempts = 5)
 # https://azure.microsoft.com/en-us/updates/update-your-apps-to-use-microsoft-graph-before-30-june-2022/
 function NewServicePrincipalWrapper([string]$subscription, [string]$resourceGroup, [string]$displayName)
 {
+    if ((Get-Module Az.Resources).Version -eq "5.3.0") {
+        # https://github.com/Azure/azure-powershell/issues/17040
+        # New-AzAdServicePrincipal calls will fail with:
+        # "You cannot call a method on a null-valued expression."
+        Write-Warning "Az.Resources version 5.3.0 is not supported. Please update to >= 5.3.1"
+        Write-Warning "Update-Module Az.Resources -RequiredVersion 5.3.1"
+        exit 1
+    }
     $servicePrincipal = Retry {
         New-AzADServicePrincipal -Role "Owner" -Scope "/subscriptions/$SubscriptionId/resourceGroups/$ResourceGroupName" -DisplayName $displayName
     }