update adlssetacl

Author: yifanz7

src/Storage/RegressionTests/adls_setaclresusive.ps1

@@ -44,7 +44,7 @@ BeforeAll {
     Add-AzAccount -ServicePrincipal -Tenant $globalNode.tenantId -SubscriptionId $globalNode.subscriptionId -Credential $cred 
 
     $resourceGroupName = $globalNode.resourceGroupName
-    $storageAccountKey = $testNode.accountKey
+    $storageAccountKey = (Get-AzStorageAccountKey -ResourceGroupName $resourceGroupName -Name $testNode.accountName)[0].Value
 
     $ctx = New-AzStorageContext  $testNode.accountName -StorageAccountKey $storageAccountKey
     $ctx2 = New-AzStorageContext  $testNode.accountName