bind: Update to 9.16.28

bind: Update to 9.16.28

For details see:
https://downloads.isc.org/isc/bind9/9.16.28/doc/arm/html/notes.html#notes-for-bind-9-16-28

"Notes for BIND 9.16.28
New Features

    Add a new configuration option reuseport to disable load balancing
    on sockets in situations where processing of Response Policy Zones
    (RPZ), Catalog Zones, or large zone transfers can cause service
    disruptions. See the BIND 9 ARM for more detail. [GL #3249]

Bug Fixes

    Invalid dnssec-policy definitions, where the defined keys did not
    cover both KSK and ZSK roles for a given algorithm, were being
    accepted. These are now checked, and the dnssec-policy is rejected
    if both roles are not present for all algorithms in use. [GL #3142]

    Handling of TCP write timeouts has been improved to track the
    timeout for each TCP write separately, leading to a faster
    connection teardown in case the other party is not reading the data.
    [GL #3200]"

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Reviewed-by: Adolf Belka <adolf.belka@ipfire.org>