Eliminate duplicate pre-commit GitHub Actions workflow

[maresb]

Description

The current pre-commit workflow should be renamed to mypy and the pre-commit part removed. We should try to run the hooks on the oldest supported Python to get a fast fail when someone uses a too-modern Python feature.

Note that #7112 deletes the pre-commit autoupdate workflow while here I'm proposing to modify the main pre-commit workflow.

[markgreene74]

Hi @maresb @ricardoV94 I am at the Code Sprint (PyData London) looking for issues to work on.

I was wondering if this issue should be closed? Looks like the pre-commit workflow was removed.

See this comment and the actual commit here.

[maresb]

Ah, right, thanks so much @markgreene74 for catching this, I really appreciate it!

Your link to the commit seems to be broken. The correct link is #7285