Merge branch 'any_tcp' into 'master'

src/knot/dnssec/rrset-sign.c

src/knot/dnssec/rrset-sign.h

src/knot/dnssec/zone-sign.c

src/knot/include/module.h

src/knot/modules/onlinesign/onlinesign.c

src/knot/nameserver/internet.c

src/knot/nameserver/process_query.c

src/knot/server/udp-handler.c

tests-extra/tests/basic/cname-follow/test.py

tests-extra/tests/basic/flags/test.py

tests-extra/tests/basic/query/test.py

tests-extra/tests/ddns/ttl/test.py

tests-extra/tests/dnssec/records/test.py