Postgres mailing lists migrated to PGLister

This is to inform all the parties concerned, that the PostgreSQL
mailing lists have migrated from majordomo to PGLister -- their
own mailing-list management system:

    <https://wiki.postgresql.org/wiki/PGLister_Announce>
    <https://gitlab.com/pglister/pglister>

Perhaps it will be possible to support it in Gmane.