Use ncu and other existing tooling to manage maintainer/collaborator lists in README.md

[sxa]

It would probably make sense to add a workflow similar to https://github.com/nodejs/node/blob/HEAD/tools/lint-readme-lists.mjs / https://github.com/nodejs/node/blob/6909ea6db9ca56d25f7a24239e590ef667f6dea0/.github/workflows/linters.yml#L257-L285 to help keep the README in sync with the actual team

Originally posted by @aduh95 in #2455 (comment)

See also @nschonni's comment at #2455 (comment) as he has started some experimentation on this.

[MikeMcC399]

The permalink above gives a 404 error. The following may be better

https://github.com/nodejs/node/blob/0dceddde2cb2010cccf80cc195189196b83cba12/.github/workflows/linters.yml#L257-L285

I assume this would mean having discrete docker-maintainer & docker-collaborator GitHub sub-teams hierarchically combined into a docker GitHub team.

[nschonni]

I flipped the people on "Docker Maintainers" to maintainer on the team, but it has no affect on Mateo and Rafael, since they're org admins. I didn't remove myself from the maintainer role, but that's currently a diff.
Not sure if the NCU can be used to parse the role to have the different roles rather than new groups.