dns/knot3: Update to 3.2.8

ChangeLog: https://gitlab.nic.cz/knot/knot-dns/raw/v3.2.8/NEWS

Improvements:

• kdig: malformed messages are parsed and printed using a best-effort approach
• python: new dname from wire initialization

Bugfixes:

• knotd: missing outgoing NOTIFY upon refresh if one of more primaries is up-to-date
• knotd: journal loop detection can prevent zone from loading
• knotd: cryptic error message when journal is full #842
• knotd: failed to query catalog zone over UDP
• configure: libngtcp2 check wrongly requires version 0.13.0 instead of 0.13.1

PR: 272222
Reported by: clukas@firc.de
Approved by: freebsd@dns.company (maintainer)