Upgrade Ruma

A new batch of breaking changes, allowing to stop providing dummy
`SupportedVersions` where they are not necessary.

Signed-off-by: Kévin Commaille <zecakeh@tedomum.fr>
This commit is contained in:
Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f