Bug 40706: macos-signer-stapler should wait for user interaction before attempting stapling

(cherry picked from commit f228c0cd)

tools/signing/macos-signer-stapler

 #!/bin/bash
 set -e
 
+read -n 1 -p "Press enter once notarization is complete..."
+
 script_dir=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 source "$script_dir/functions"