Update timestamp signature server for Windows installers (#594)

Author: KVS85

helper.psm1

@@ -1697,8 +1697,8 @@ Function signWindows
     Write-Host "Time: $((Get-Date).ToUniversalTime().ToString('yyyy-MM-ddTHH.mm.ssZ'))"
     ForEach ($PACKAGE in $(Get-ChildItem -Filter ArangoDB3*.exe).FullName)
     {
-        Write-Host "Sign: signtool.exe sign /sm /fd sha1 /td sha1 /sha1 D4F9266E06107CF3C29AA7E5635AD5F76018F6A3 /tr `"http://sha256timestamp.ws.symantec.com/sha256/timestamp`" `"$PACKAGE`""
-        proc -process signtool.exe -argument "sign /sm /fd sha1 /td sha1 /sha1 D4F9266E06107CF3C29AA7E5635AD5F76018F6A3 /tr `"http://sha256timestamp.ws.symantec.com/sha256/timestamp`" `"$PACKAGE`"" -logfile "$INNERWORKDIR\$($PACKAGE.Split('\')[-1])-sign.log" -priority "Normal"
+        Write-Host "Sign: signtool.exe sign /sm /fd sha1 /td sha1 /sha1 D4F9266E06107CF3C29AA7E5635AD5F76018F6A3 /tr `"http://timestamp.digicert.com`" `"$PACKAGE`""
+        proc -process signtool.exe -argument "sign /sm /fd sha1 /td sha1 /sha1 D4F9266E06107CF3C29AA7E5635AD5F76018F6A3 /tr `"http://timestamp.digicert.com`" `"$PACKAGE`"" -logfile "$INNERWORKDIR\$($PACKAGE.Split('\')[-1])-sign.log" -priority "Normal"
     }
     Pop-Location
 }