Group dependabot

[Ninja3047]

Makes the dependabot updates way easier to review and less wasteful

@DarkaMaul i saw that you had split up the github action updates due to a bug? Curious how you tested it. (#42)

I'm hoping they fixed it after a year since it's quite annoying to have to go through like 2n dependabot updates every time there's an update

[DarkaMaul]

I tested using a fork, and downgrading a GitHub action version to have dependabot pick the new version.

I believe this is still not fixed: https://github.com/DarkaMaul/cookiecutter-python

It opened a single PR to update the template github action but not the one from the repository and the update failed with a cryptic error:

Errored with the message "Dependabot failed to create a pull request"

Note: You can force a dependabot run in https://github.com/DarkaMaul/cookiecutter-python/network/updates

[Ninja3047]

got it working in my private fork i think the issue may have been i accidentally tabbed the yaml too much so it just barfed with no error

[DarkaMaul]

CI passed also on the testing fork - great job here: https://github.com/DarkaMaul/cookiecutter-python/actions/runs/19887687486/job/56998530410

Sadly, I think we can't ask GitHub to check multiple dependabot configuration file automatically (only the one in .github/dependabot.yml is validated).