Macos signing in cli release build broken

[ddelnano]

When trying to release the cli this week, the build failed with the following error:

+ gon ci/gon.hcl
==> ✏️  Signing files...
    Code signing successful
==> 📦  Creating Zip archive...
    Zip archive created with signed files
==> 🍎  Notarizing...
    Path: cli_darwin.zip
    Submitting file for notarization...
    Error notarizing

❗️ Error notarizing:

1 error occurred:
	* 1 error occurred:
	* Notarization of MacOS applications using altool has been decommissioned. Please use notarytool. See: https://developer.apple.com/documentation/technotes/tn3147-migrating-to-the-latest-notarization-tool (-1031)

The gon tool is no longer supported, so we should migrate to notarytool which is the currently recommended tool by Apple.