Add a GitHub Action to find typos with codespell

[cclauss]

This GitHub Action uses minimal steps to run in ~5 seconds to rapidly look for typos in the codebase using codespell.

• https://github.com/codespell-project/codespell#readme

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Marmalade, I like marmalade...

https://en.wikipedia.org/wiki/Alan%27s_Psychedelic_Breakfast

[fangerer]

I'm fine with that but would like to wait for a second opinion.
@mattip @hodgestar @antocuni What do you think?

[hodgestar]

Also happy with this, but let's let a couple more people chime in an perhaps ping everyone on Discord?

Very happy to see the various typos cleaned up.

[steve-s]

I like that the codespell caught real errors. I don't have a strong opinion on ruff, but there was already a declined PR to enable it. Has anything changed since then? Does this PR enable it in some other way than the previous?

[cclauss]

I would say that a ton has changed given the rapid adoption of ruff. It now has more than 700 lint rules, a conservative --fix capability, and a code formatter that is certainly faster than and often preferred over black.

[mattip]

As I commented in the other PR I think we are not in need of ruff right now. I said there:

I think we should reject this PR. The only time code formatting has become a discussion topic is when use of a tool to format code is proposed. This seems to be the flip side of the "code formatters prevent discussions around formatting": to become "code formatters generate unhelpful and long discussions around code formatting".

[mattip]

PRs that contribute to the adoption and development of HPy would be much more helpful.

[cclauss]

Linting with ruff has been removed.