[EngSys] Apply AzurePowerShellCredential workaround unconditionally (#…

…30504)

so that all configurations have it.

eng/pipelines/templates/jobs/live.tests.yml

@@ -212,6 +212,11 @@ jobs:
 
       # ===== BEGIN LIVE TEST RUNS =====
 
+      - pwsh: |
+          eng/common/scripts/Import-AzModules.ps1
+          Update-AzConfig -DisplayBreakingChangeWarning $false
+        displayName: "Workaround https://github.com/Azure/azure-sdk-for-js/issues/30356"
+
       - ${{ if eq('true', parameters.UseFederatedAuth) }}:
         - task: AzurePowerShell@5
           inputs:
@@ -224,7 +229,6 @@ jobs:
               $account = (Get-AzContext).Account
               $env:AZURESUBSCRIPTION_CLIENT_ID = $account.Id
               $env:AZURESUBSCRIPTION_TENANT_ID = $account.Tenants
-              Update-AzConfig -DisplayBreakingChangeWarning $false
 
               node ../../../common/scripts/install-run-rushx.js integration-test:$(TestType)
               exit $LASTEXITCODE