fix: upgrade code guid (#21)

Author: ateoi

VSTemplate/Product.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
   <Product Id="*" Name="$safeprojectname$ Nerd Font" Language="1033" Version="2.3.3"
-    Manufacturer="DEVCOM" UpgradeCode="c0958d9a-1772-4444-82fc-1149c850d6ae">
+    Manufacturer="DEVCOM" UpgradeCode="$guid1$">
     <Package InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />
 
     <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />