[Scripts] Update sha256.ps1

Connection Refused · Connection Refused · commit 30e76c8c5278 · 2021-10-16T15:39:21.000+08:00
diff --git a/sha256.ps1 b/sha256.ps1
@@ -5,7 +5,7 @@ param (
 
 Push-Location $Location
 
-$global:data = ""
+$global:data = ''
 function Scan {
     param (
         [string]
