Update cheatsheets to use Matplotlib 3.10

[dstansby]

No description provided.

[jklymak]

I wonder if there is a way to automate all this?

[dstansby]

I've manually checked the diffs, and they look fine/expected. Just the version number text changing, and very minor changes to the colourmaps which still visually look as expected.

[timhoffm]

One could automate the version number change - but then again, it's just a simple search&replace. I think a manual check is still needed.

If we want to reduce effort, we could drop the micro version and only build 3.10.0, 3.11.0, ... I would not expect API or behavior changes on micro version updates. So a cheatsheet for call 3.10.x versions should look the same. We may title them 3.10 instead of 3.10.0 so that nobody gets the impression a cheatsheet built on 3.10.0 may be outdated for 3.10.8.

[QuLogic]

This repo has a bumpversion config; there should hopefully not be any manual search&replace required.

[dstansby]

Yes, this is pretty easy to do using bumpversion.