[CI] Add Python version 3.10, make sure pip and setuptools are upgraded during the CI

[ulupo]

Partially addresses #45, and ensures pip and setuptools are updated. This is important as e.g. the correct installation of our dependencies depends on having these packages up-to-date (we similarly upgrade in giotto-tda and pyflagser).

[ulupo]

@MonkeyBreaker if this works, we could maybe merge it and then make another PR from a branch here (not in one of our forks) to verify whether the wheels can be built already or we really need to upgrade the manylinux version in view of SciPy's news: https://github.com/scipy/scipy/releases/tag/v1.7.2

[ulupo]

@MonkeyBreaker sorry, I guess we need to mirror these changes into a new branch in giotto-ai to test whether the wheel building step would work with Python 3.10!

[ulupo]

@MonkeyBreaker sorry, I guess we need to mirror these changes into a new branch in giotto-ai to test whether the wheel building step would work with Python 3.10!

Or we can merge this as is (since the CI passes) and worry about whether we can build wheels for Python 3.10 after the merge? After all, it's OK for us to test for Python 3.10 already now even if we don't yet produce wheels for it.

[MonkeyBreaker]

I just started the building of the wheels on your branch https://github.com/ulupo/giotto-ph/actions/runs/1436504308
When touching the CI, I think it would be better to create a branch directly into origin, that way we can run the Action directly from here.

If the builds build fine, then yes, we can merge, otherwise I will debug what is going on :)

[MonkeyBreaker]

The wheels for Python 3.6 to Python 3.10 can be now generated 🎉 ! (see)
@ulupo do you want to address the comment about the dependencies now or should we do it in a later PR ?

[ulupo]

If you're happy with this comment I am happy to merge this!

[ulupo]

Are you sure that pip install -e . does pull latest version of the packages ?

@MonkeyBreaker see https://pip.pypa.io/en/stable/cli/pip_install/ (Satisfying Requirements). So yes except for pre-releases sometimes.

[MonkeyBreaker]

@MonkeyBreaker see https://pip.pypa.io/en/stable/cli/pip_install/ (Satisfying Requirements). So yes except for pre-releases sometimes.

Alright, perfect, we could remove it now then, what do you think ?

[ulupo]

Alright, perfect, we could remove it now then, what do you think ?

I think yes! Go for it!

[MonkeyBreaker]

Done, when the pipelines ends, then let's Merge !

[MonkeyBreaker]

LGTM !