Staple notarization ticket to .dmg and .app bundle (#7775)

This should eliminate a pretty significant (multiple seconds) slowdown
that new users (or users after restarting their OS) have been
experiencing.

Previously, we would just notarize the application, which meant that
every user of the application had to perform an integrity check against
Apple's servers to ensure the app wasn't malicious.

With this commit, we are now using `xcrun stapler staple`, which
attaches the notarization ticket to both the app bundle as well as the
DMG. This should prevent users from needing to reach out to Apple's
notarization service in order to verify the app's integrity.

You can confirm the quarantine status of the application by running `ls
-l@` in `Terminal.app`:

    ls -l@ /Applications/Zed.app/Contents/MacOS/zed

Release Notes:

- Improved startup time when opening Zed for the first time or after
restarting the operating system.

Co-authored-by: Thorsten <thorsten@zed.dev>
Co-authored-by: bennetbo <bennetbo@gmx.de>
Co-authored-by: Martin Palma <m@palma.bz>
Co-authored-by: evrsen <146845123+evrsen@users.noreply.github.com>