[llvm] [Security Group] add github names of security group members. (PR #69304)

[Dimitry Andric via llvm-commits]

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

I'm okay with at least my changed line, and @emaste's, I cannot vouch for any of the others though :)


https://github.com/llvm/llvm-project/pull/69304