[llvm] [Github] Explicitly requesting Ubuntu 22.04 for SPIRV test (PR #122395)

[Chris B via llvm-commits]

llvm-beanz wrote:

The system default version of Python on Ubuntu 22.04 is Python 3.10. Some of our actions require 3.11 or 3.12 which we use the `setup-python` action to configure.

IIUC, the issue isn't really about the version of python, it is about the `setup-python` action doing something dumb and installing a binary for python built for Ubuntu 22.04 instead of matching the runner configuration. So if we run this on `ubuntu-latest` we get a python binary linked against glibc from Ubuntu 22.04 instead of matching `ubuntu-latest` (24.04).

@boomanaiden154 has done the actual debugging on this, so he can correct me if I'm misunderstanding the situation.

https://github.com/llvm/llvm-project/pull/122395