Update to numpy>=1.23 and matplotlib>=3.6 according to SPEC 0

[jarrodmillman]

Description

Checklist

• A descriptive but concise pull request title
• Docstrings for all functions
• Unit tests
• A gallery example in ./doc/examples for new features
• Contribution guide is followed

Release note

Summarize the introduced changes in the code block below in one or a few sentences. The
summary will be included in the next release notes automatically:

...

[lagru]

Thanks!

[stefanv]

@lagru Did you notice that CI was red on that one?

[lagru]

Yes, I've been seeing this error for the pre-job in other PRs as well and was reasonably sure that this PR didn't introduce it. Haven't yet looked into whats triggering it...

For future reference, should I have held of one the merge regardless in this case?

[stefanv]

Ah, no, just want to make sure it gets looked at; I will also investigate. Merging this to main caused that branch to now fail.

[lagru]

I can reproduce the error locally for Python 3.12. Pytest 8.0.0rc1 (as opposed to 7.4.4) seems to trigger it.

[lagru]

I think it's because starting with 8.0.0rc1 pytest now re-emits warnings it didn't match. Previously these were silently consumed. :/ Search for #9288 in https://docs.pytest.org/en/latest/changelog.html. So it's not a new warning, it's that we are seeing it now.

[lagru]

See #7287.