Remove support for Python 3.7

[brandonwillard]

This PR removes explicit Python 3.7 support.

[maresb]

@brandonwillard, I rebased on main to fix the mypy failure.

I updated the upper Python version in the test matrix to 3.11. If it was deliberate to have it only at 3.10 then we can remove 0107efc. Otherwise we might squash it.

Finally I upgraded the flake8 pre-commit version and removed the respective comment in a separate commit.

[maresb]

If it was deliberate to have it only at 3.10 then we can remove 0107efc.

Ah, right. Numba doesn't yet support 3.11. I'll add a comment.

[codecov[bot]]

Codecov Report

Merging #1483 (20fb999) into main (1da48b5) will increase coverage by 0.04%. The diff coverage is n/a.

Additional details and impacted files

[](https://codecov.io/gh/aesara-devs/aesara/pull/1483?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=aesara-devs) ```diff @@ Coverage Diff @@ ## main #1483 +/- ## ========================================== + Coverage 75.02% 75.06% +0.04% ========================================== Files 194 194 Lines 50102 50102 Branches 12096 12096 ========================================== + Hits 37589 37611 +22 + Misses 10189 10170 -19 + Partials 2324 2321 -3 ``` [see 11 files with indirect coverage changes](https://codecov.io/gh/aesara-devs/aesara/pull/1483/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=aesara-devs)

[brandonwillard]

Thanks, as always, @maresb!