fix to resolve hourglass being unable to download windows executables after 3.5 rc 3

hi! ever since rc 3 (the fix for win11 process forking or something iirc), windows zips have been modified with both a regular exe and a .cmd file. hourglass has not been a fan of it and will throw back a "cannot find executable" error, which this pr aims to resolve. it should allow for both mono and native versions to download and decompress correctly. the fix itself is admittedly super quick and dirty, simply checking explicitly for a cmd file and ignoring it, which may not be the direction you want to take the codebase for future scenarios. if that's the case, i can happily rework this, but as it stands right now i'm able to open projects on later rcs (and presumably the final release version as well).

let me know if there's anything i can/should change or need to do. thanks!