Move capture env task to ob_restore

Author: adityapatwardhan

.pipelines/templates/build-sign-windows.yml

@@ -19,6 +19,8 @@ jobs:
     - pwsh: |
         Get-ChildItem Env:\ | Out-String -Stream | Write-Verbose -Verbose
       displayName: Capture environment variables
+      env:
+        ob_restore_phase: true # Set ob_restore_phase to run this step before '🔒 Setup Signing' step.
 
     - task: CodeQL3000Init@0 # Add CodeQL Init task right before your 'Build' step.
       env: