Extend the list of headers included by lib/dns/tests/sigs_test.c

(cherry picked from commit f98e145c)
7 jobs for 252-9-9-sigs_test-updatesigs-is-failing-v9_12 in 6 minutes and 28 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Precheck
passed precheck:debian:sid:amd64 #11822
amd64 docker linux

00:00:11

 
  Build
passed build:debian:sid:amd64 #11823
amd64 docker linux

00:01:30

passed build:debian:sid:i386 #11824
i386 docker linux

00:01:32

 
  Test
passed systemtest:debian:sid:amd64 #11827
amd64 docker linux

00:04:38

passed systemtest:debian:sid:i386 #11828
i386 docker linux

00:04:43

passed unittest:debian:sid:amd64 #11825
amd64 docker linux

00:00:51

passed unittest:debian:sid:i386 #11826
i386 docker linux

00:00:51