Log Message:
net/knot: Update to 3.4.2

CHangelog:
3.4.2:
Improvements:

      + knotd: new warning log upon every incremental update if previous zone
        signing failed
      + mod-cookies: support for two secret values specification
      + keymgr: key pregenerate works even when a KSK exists
      + libs: upgraded embedded libngtcp2 to 1.8.1

Bugfixes:

      + knotd: server can crash when processing just a terminal label as QNAME
      + knotd: failed to compile if no atomic operations available
      + kjournalprint: failed to merge zone-in-journal if followed by a
        non-first changeset
      + knot-exporter: faulty escape sequence in time value parsing
      + knot-exporter: failed to parse zone-status output
      + kxdpgun: periodic statistics doesn't work correctly for longer time
        periods