doc: update install_tools.bat free disk space

Fixes: #59326
PR-URL: #59579
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

Author: StefanStojanovic

tools/msvs/install_tools/install_tools.bat

@@ -13,7 +13,7 @@ echo This script will install Python and the Visual Studio Build Tools, necessar
 echo to compile Node.js native modules. Note that Chocolatey and required Windows
 echo updates will also be installed.
 echo.
-echo This will require about 3 GiB of free disk space, plus any space necessary to
+echo This will require about 7 GiB of free disk space, plus any space necessary to
 echo install Windows updates. This will take a while to run.
 echo.
 echo Please close all open programs for the duration of the installation. If the