Add a maintainer field to the metadata

[larsyencken]

Problem

When we use the admin, it shows when indicators were last changed but not who changed them, which makes it more annoying to ask questions or follow up on changes to our data.

Idea

We could add a maintainer field at the dataset level, and all edits could be attributed to them when present.

Alternatives

• Some kind of tricky mapping of git usernames to our OWID internal accounts

Technical notes

• If we had this link, it would also be useful for a ton of downstream tools and applications where knowing who is associated with a dataset is helpful

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Marigold]

We discussed this at the offsite and agreed that it'd be a very nice feature (we should implement it as part of other metadata changes).

[pabloarosado]

I'm closing this issue, as it seems to be a duplicate of https://github.com/owid/etl/issues/2465