[llvm] [Github] Bump Runner Version in Containers (PR #124324)

[Lucile Rose Nihlen via llvm-commits]

lnihlen wrote:

I don't want to hold up this PR but it's worth asking the question - is there any way we could set this version in one location, so we don't have two numbers to keep in sync?

https://github.com/llvm/llvm-project/pull/124324