test: Run test suite on multiple environments

[clementguidi]

Hi,

As we recently realized (#1903), the current test runs are not able to catch breaking changes for some environments. This is obviously expected as you cannot test on every environment (kernel/arch/compiler) possible.

I can see the nightly tests in GH Actions are restricted to one image. What other envs are you able to test on?

Do you think we could test uftrace in more environments? Especially on a broader spectrum of compilers and kernels.

I understand this means more efforts and resources. I was curious to know your position on this?

[namhyung]

Hi, actually I didn't research all the possibilities that provide free CI infra and just use GH for now. I don't think I can increase the testing matrix in the Github free tier. I'm open to suggestions. :)