Related to #15774
This PR adds instructions to the release notes to tell users how to self sign bitcoin core binaries so they are executable on macOS.
Tested on
0Darwin Chriss-MacBook-Pro.local 23.6.0 Darwin Kernel Version 23.6.0: Mon Jul 29 21:14:46 PDT 2024; root:xnu-10063.141.2~1/RELEASE_ARM64_T6031 arm64
These commands do not appear to require ‘phoning home’. I tested these commands when disconnected from a network connection and things worked.