Introduce pre-commit as a GitHub automated action

[DelazJ]

This is an attempt to instaure the pre-commit checks in Github actions and ensure that we catch errors from any contributors.

The content is highly inspired by the one in code repo and I must confess that I do not understand the whole logic. I just know that it quite works well there so let's try here also. I also picked some formatting from #10856.

@timlinux @3nids May I request your review please ? I don't know if there are additional things to set at the repo level e.g.. Thanks.

[3nids]

I would recommend trying to use pre-commit.ci for this repo. We could not do this with QGIS due to its size but I would expect this to work for this one

[DelazJ]

Thanks @3nids.
In our .pre-commit-config.yaml file, we have:

ci:
autofix_prs: true
autoupdate_schedule: quarterly

I thought this was enough but nothing happens these last weeks. Browsing the code repo I can't see anything obvious (see e.g. https://github.com/qgis/QGIS/pull/61652/changes#diff-63a9c44a44acf85fea213a857769990937107cf072831e1a26808cfde9d096b9). So can you please indicate what particular action we need to take?

[3nids]

it needs to be enabled from pre-commit.ci
I just went to do it, but I might have insufficient rights, and I could only trigger a request. So the admins of the QGIS org on Github will be received a notification to accept this.
Then it should be all good.

[3nids]

The main advantage of running it via pre-commit.ci is that you can have autofixing of PRs coming from forks which is not possible when you do it with a workflow.

[DelazJ]

Merci @3nids