unbound: Update to 1.17.1

unbound: Update to 1.17.1

For details see:
https://nlnetlabs.nl/projects/unbound/download/#unbound-1-17-1

"Features

    Expose 'statistics-inhibit-zero' as a configuration option; the default
    value retains Unbound's behavior.
    Expose 'max-sent-count' as a configuration option; the default value
    retains Unbound's behavior.
    Merge #461 from Christian Allred: Add max-query-restarts option.
    Exposes an internal configuration but the default value retains
    Unbound's behavior.
    Merge #569 from JINMEI Tatuya: add keep-cache option to
    'unbound-control reload' to keep caches.

Bug Fixes

    Merge #768 from fobser: Arithmetic on a pointer to void is a GNU
    extension.
    In unit test, print python script name list correctly.
    testcode/dohclient sets log identity to its name.
    Clarify the use of MAX_SENT_COUNT in the iterator code.
    Fix that cachedb does not store failures in the external cache.
    Merge #767 from jonathangray: consistently use IPv4/IPv6 in
    unbound.conf.5.
    Fix to ignore tcp events for closed comm points.
    Fix to make sure to not read again after a tcp comm point is closed.
    Fix #775: libunbound: subprocess reap causes parent process reap to
    hang.
    iana portlist update.
    Complementary fix for distutils.sysconfig deprecation in Python 3.10 to
    commit 62c5039ab9da42713e006e840b7578e01d66e7f2.
    Fix #779: [doc] Missing documention in ub_resolve_event() for callback
    parameter was_ratelimited.
    Ignore expired error responses.
    Merge #720 from jonathangray: fix use after free when WSACreateEvent()
    fails.
    Fix for the ignore of tcp events for closed comm points, preserve the
    use after free protection features.
    Fix #782: Segmentation fault in stats.c:404.
    Add SVCB and HTTPS to the types removed by 'unbound-control flush'.
    Clear documentation for interactivity between the subnet module and the
    serve-expired and prefetch configuration options.
    Fix #773: When used with systemd-networkd, unbound does not start until
    systemd-networkd-wait-online.service times out.
    Merge #808: Wrap Makefile script's directory variables in quotes.
    Fix to wrap Makefile scripts directory in quotes for uninstall.
    Fix windows compile for libunbound subprocess reap comm point closes.
    Update github workflows to use checkout v3.
    Fix wildcard in hyperlocal zone service degradation, reported by Sergey
    Kacheev."

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>