[llvm] [llvm][release] Add links to automatically built packages (PR #147719)

[David Spickett via llvm-commits]

DavidSpickett wrote:

I've tested this on my fork and it works. I did manually run the workflow, so there's a small chance it has permissions issues in reality.

The version of PyGitHub available in apt has some differences from the current one on GitHub so you'll notice some parameter names swapped like "name" and "title". They mean the same things.

https://github.com/llvm/llvm-project/pull/147719