Add a manylinux_2_28 build

[mayeut]

Per pypa/manylinux#1277 (comment) comment
Draft to check if manylinux_2_28 Proof-Of-Concept images can build openblas-libs.
This reduce testing to manylinux_2_28 at first. If all is OK, will preextend the build to check nothing broke for other builds.

cc @mattip

[mattip]

Looks good.

[mayeut]

Re-enable all builds then.

@mattip, do you know if there's an easy way to enable some testing ? Workflows seem to only do the build, no tests. Am I missing something ?

[mattip]

We should move the linux and macOS runs off travis and onto github actions, and enable the tests.

[mayeut]

We should move the linux and macOS runs off travis and onto github actions

This is already the case except for alt-arch which are running on travis-ci and that probably should remain like this (going with qemu on GHA might really prove too slow).

enable the tests

any insight on this one ?

[mattip]

manylinux_2_17 will EOL in June 2024. We should restart this work to support manylinux_2_28 across the scientific python ecosystem. I think this as good a place as any to start

[charris]

We should restart this work to support manylinux_2_28

I was just thinking the same. We've been using manylinux2014 for a long time. It looks like 2_28 doesn't support 32 bit linux, so the two decisions are coupled.