Postgres official support for version 10.x has expired in november 2022. We should consider which database versions our product should support in the future, especially in context of LTS releases, so that our support and database support match, i.e. We do not have a situation where software version becomes unsupported in the middle of our major version.

Update - by Gunnstein:
Our requirements say "PostgreSQL 10+", this includes any newer version as well according to the logic on that page. So there is technically nothing wrong with this. But we could make it clearer, and it seems we should update CI to test on supported versions.

Supported versions: https://www.postgresql.org/support/versioning/

PRs:
Bump CI to Postgres 11: https://github.com/ezsystems/ezpublish-kernel/pull/3152