fix: Correctly sign executables for MacOS

[aklinker1]

After testing, it seems like we need to sign and notarize, but not staple. Tried stapling, got a weird error:

Downloaded ticket has been stored at file:///var/folders/0g/.../T/....ticket.
Could not remove existing ticket from bun/Contents/CodeResources -- file:///Users/runner/work/bunv/bunv/zig-out/bin/ because an error occurred. Error Domain=NSCocoaErrorDomain Code=512 "“CodeResources” couldn’t be removed." UserInfo={NSUserStringVariant=(
    Remove
), NSFilePath=/Users/runner/work/bunv/bunv/zig-out/bin/bun/Contents/CodeResources, NSUnderlyingError=0x6000015388d0 {Error Domain=NSPOSIXErrorDomain Code=20 "Not a directory"}}
The staple and validate action failed! Error 73.

Seemed like stapling doesn't seem to work on binarys, only .pkg files. Gatekeeper doesn't seem to fire if the binaries are signed an notarized, so that's what I'm doing.