Move plausible from weekly to external in used-recipes.md. cc-ci still
deploys/tests it (the recipe + tests stay enrolled, !testme bridge
unchanged), but it is no longer surveyed/upgraded by the weekly /upgrade-all
run — maintained elsewhere, like uptime-kuma.
The open plausible PR #5 (clickhouse 23.4.2.11 -> 23.4.6.25) from this week's
run stays open for the operator; no future weekly PRs will be opened for it.
autonomic-bot