[llvm] workflows/release-binaries: Restrict jobs based on owner instead of repo (PR #123797)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 approved this pull request.

Is there an intention to use this or is this just general cleanup?

Anyways, LGTM.

https://github.com/llvm/llvm-project/pull/123797