[llvm] [Github][Bazel] Add Workflow to Run Bazel Build (PR #165071)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

> Ah sorry for the confusion! For Bazel specifically its possible to use remote execution rather than running locally. I.e. the runner in this workflow just needs to construct the build graph, and can then send that off to one or multiple separate builder machines. This way it doesn't matter too much whether it's a free or a self-hosted runner, because the actual compilation happens elsewhere (e.g. in the same K8s cluster in another container or somewhere else entirely).

I did not realize you were talking about RBE. I'm aware of how that works.

https://github.com/llvm/llvm-project/pull/165071