chore: change keyvalt set permissions on SP

infrastructure-as-code/scripts/DatabricksSecrets.ps1

@@ -23,7 +23,6 @@ Write-Host "ServicePrincipalName " $ServicePrincipalName
 
 $context = Get-AzContext
 Write-Host "Getting user and principal information..." -ForegroundColor Green
-$user = Get-AzADUser -UserPrincipalName $context.Account.Id
 $servicePrincipal = Get-AzADServicePrincipal -DisplayName $ServicePrincipalName
 
 if ($servicePrincipal) {
@@ -41,10 +40,10 @@ if ($servicePrincipal) {
     $dbw = Get-AzDatabricksWorkspace -ResourceGroupName $ComputeResourceGroup -Name $DatabricksName 
 
     Write-Host "Adding permissions to user on Key Vault..." -ForegroundColor Green
-    $userPermissions = $kv.AccessPolicies | Where-Object { $_.ObjectId -eq $user.Id }
+    $userPermissions = $kv.AccessPolicies | Where-Object { $_.ObjectId -eq $servicePrincipal.Id }
     $secretPermissions = $userPermissions.PermissionsToSecrets
     if (! $secretPermissions || ! $userPermissions.PermissionsToSecrets.Contains("set")) {
-        Set-AzKeyVaultAccessPolicy -VaultName $KeyVaultName -ObjectId $user.Id -PermissionsToSecrets "set"
+        Set-AzKeyVaultAccessPolicy -VaultName $KeyVaultName -ObjectId $servicePrincipal.Id -PermissionsToSecrets "set"
     }
 
     Write-Host "Setting service principal secrets on Key Vault..." -ForegroundColor Green