Don't call sudo when we're already root

[karolba]

It's possible to execute actions inside a Docker container using (container:) - and it's possible (and I'd wager common) to already be root there and not have sudo available

[unfor19]

@karolba this looks like a great addition

Can you please add it as part of the inputs? I prefer not to break the app for users who want it to keep it running as it is. So if someone specifically wants to remove the sudo they can use a new input skipsudo: true and then it will act as you did.

If you update your PR to that, I will definitely merge it and release a new version 🙏🏻

[karolba]

@unfor19 Sure! Although: I don't think it's neccessary - I only skip sudo here if the user is already root and using sudo wouldn't change anything - especially because you have --preserve-env here.

If you think this needs to be in inputs anyway after reconsidering, then I'll add it there