update github actions

[shuffle2]

updating the actions quiets a warning when using the workflow

also updates toolchains to more recent things

note: users may also need to change [master] for e.g. [main] . maybe obvious, but this was my first use of github workflows, so it wasn't for me.

[Marcus10110]

Thanks, I just updated this but without the GCC 13 update.

We have an open issue right now where we're building on Ubuntu 22, but we're trying to support Ubuntu 20. (Main issue here is glibc dependency). I haven't had a chance to get back to the project, but I was in the process of setting up a container that used Ubuntu 20 to ensure we did not accidentally pick up newer glibc versions.

Once that's done, I want to update gcc as much as we can, without requiring users to install newer libstdc++ versions.

Thanks for calling out the default branch name in the github action! We should build both master and main by default. I'm swamped at the moment, but I created an issue for it here: #38