feat(Orbis): make fpkgs not real pkgs

https://github.com/CyB1K/PS4-Fake-PKG-Tools-3.87

Minecraft.Client/Common/Postbuilds/Orbis-postbuild.ps1

@@ -110,7 +110,7 @@ foreach ($dir in $delDirs) {
 $tools = Join-Path $env:SCE_ROOT_DIR "\ORBIS\Tools\Publishing Tools\bin"
 $pkgSrc = Join-Path $OutDir "PS4_GAME"
 
-$genGp4 = Join-Path $ProjectDir "Common\Postbuilds\Executables\gengp4_app.exe"
+$genGp4 = Join-Path $tools "gengp4_app.exe"
 $pubCmd = Join-Path $tools "orbis-pub-cmd.exe"
 
 $pkgPath  = Join-Path $OutDir "Minecraft.Client.pkg"