chore: Add renovate configuration file for dependency management

[stv0g]

No description provided.

[leonardocarreras]

Looks good to me...

Options for follow up PRs to increase coverage are:

• Containers

{
  "matchManagers": ["dockerfile"],
  "matchFileNames": ["packaging/docker/**"],
  "matchUpdateTypes": ["major"],
  "enabled": false
}

• Python

{
  "matchManagers": ["pep621"],
  "groupName": "Python dependencies"
}

[steffen-vogel-opalrt]

I am wondering: why is the config for containers not enabled?

[leonardocarreras]

Sorry, my comment was misleading/confusing (does not increase coverage, just helps to define options)... Scan is enabled in the default recommended config...

That one was more on the direction that I understand that the "enabled": false would help to avoid it to ask you to move i.e. from fedora 42 -> 44, if you do not want that to be automatic. Another option is "dependencyDashboardApproval": true and lets you decide when it happens... But is nothing critical in any case...

[stv0g]

I see. That was my assumption as well.. I think it's a good thing that we get PRs also about major updates. Wether we accept or close them is another point though