Fix whatever was causing the db volume-claim to run out of space. (perhaps raise PVC size, or fix some misconfiguration)

[Venryx]

Update: Around 2024-06-25, the db volume-claim ran out of space again. When we looked into it, it appeared to be due to the pg_wal folder growing very large (something like 9gb). So maybe some logical-replication slot that is not getting cleaned up properly.