systemd-stage0 is currently at pkgrel=1, while systemd is still at
pkgrel=0. However, systemd provides systemd-stage0=$pkgver-r$pkgrel, so
currently, installing systemd-stage0 will always install systemd-stage0
instead of systemd. Their pkgrels MUST be kept in sync.
[ci:skip-vercheck]: the stage0 package change is only a new comment
Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/8709>