Description of the JSON schema.

Every time Renovate releases a new major version, we'd like to archive a copy of the old major version's schema, which will allow for folks on older versions of Renovate to still reference a publicly-accessible version of the JSON Schema

Supporting information.

I'm Jamie, one of the maintainers on Renovate and as noted in renovatebot/renovate#37994 we're looking at options here.

If this is something y'all are happy with, we'd love to put them here as a great source-of-truth!

We (the Renovate maintainers) will contribute these previous versions at the point of shipping a new major version, and no updates to them should be necessary

Are you making a PR for this?

Yes, I will create a PR.