Fix the issue where symbolic links are not correctly resolved when using them to move the Flutter cache to another location.

[frg2089]

I will move the cache of Flutter from %LocalAppData%\Pub to E:\Cache\Pub
But this script cannot correctly parse this situation
It will change the address originally pointing to E:\Cache\Pub to C:\Cache\Pub, thereby preventing compilation

Links

• Fix the error where the symbol link cannot be correctly parsed when moving the flutter cache to another location using symbol links Tienisto/rhttp#48