use azpwsh to retrieve key vault secrets (#22065)

* use azpwsh to retrieve key vault secrets

* use meaningful names

---------

Co-authored-by: Hongtu Zhang (FA Talent) <[email protected]>

Author: greathongtu

.azure-pipelines/sync-aliases.yml

@@ -10,21 +10,24 @@ jobs:
 - job: UpdateJson
   displayName: Update fabricbot.json
   steps:
-  - task: AzureKeyVault@2
+  - task: AzurePowerShell@5
     inputs:
       azureSubscription: 'Azure SDK Infrastructure'
-      KeyVaultName: '$(KeyVaultName)'
-      SecretsFilter: '$(ADOTokenName)'
-      RunAsPreJob: false
+      ScriptType: 'InlineScript'
+      Inline: |
+        $ADOTokenValue = Get-AzKeyVaultSecret -VaultName ${env:KEYVAULTNAME} -Name ${env:ADOTOKENNAME} -AsPlainText
+        Write-Host "##vso[task.setvariable variable=ADOToken;issecret=true]$ADOTokenValue"       
+      azurePowerShellVersion: 'LatestVersion'
+    displayName: Get ADOToken from Key Vault
 
   - pwsh: |
-      ./tools/Github/ParseUncyclo2Json.ps1 -ADOToken $("$(ADOTokenName)")
+      ./tools/Github/ParseUncyclo2Json.ps1 -ADOToken $(ADOToken)
     displayName: Update fabricbot.json file locally
-      
+
   - pwsh: |
       $gitStatus = git status -s
       if (-not $gitStatus) {
-          Write-Host "The wiki has no changes ."
+          Write-Host "The wiki has no changes."
           Write-Host "##vso[task.setvariable variable=ChangesDetected]false"
       } else {
           Write-Host "There are changes in the repository."