Prepare scanner branch for merge

scripts/dev-admin.ps1

@@ -1,5 +1,6 @@
 param(
-  [string]$ProjectRoot = (Resolve-Path -LiteralPath (Join-Path $PSScriptRoot "..")).Path
+  [string]$ProjectRoot = (Resolve-Path -LiteralPath (Join-Path $PSScriptRoot "..")).Path,
+  [string]$OcrWorkers = $env:GAA_OCR_WORKERS
 )
 
 $ErrorActionPreference = "Stop"
@@ -19,6 +20,9 @@ try {
     "-File $(Quote-ProcessArgument $script)",
     "-ProjectRoot $(Quote-ProcessArgument $project)"
   ) -join " "
+  if ($OcrWorkers) {
+    $arguments += " -OcrWorkers $(Quote-ProcessArgument $OcrWorkers)"
+  }
 
   Start-Process -FilePath $powershellExe -ArgumentList $arguments -WorkingDirectory $project -Verb RunAs -WindowStyle Normal -ErrorAction Stop