db-datanommer02: switch backups to 02 and copy public db from there too
    
    We switched a while ago to db-datanommer02 which is a timescaledb from
    the old db-datanommer01. However, backups were not working right until
    recently. Now that they are, switch backups to backup 02 instead of 01
    and also copy that one public. This should allow us to retire
    db-datanommer01 entirely now.
    
    Signed-off-by: Kevin Fenzi <kevin@scrye.com>