Bump wait time in servestale test with 1 second

This check intermittently failed:

I:serve-stale:check not in cache longttl.example times out...
I:serve-stale:failed

This corresponds to this query in the test:

$DIG -p ${PORT} +tries=1 +timeout=3  @10.53.0.3 longttl.example TXT

Looking at the dig output for a failed test, the query actually got a
response from the authoritative server (in one specific example the
query time was 2991 msec, close to 3 seconds).

After doing the query for the test, we enable the authoritative
server after a sleep of three seconds. If we bump this sleep to 4
seconds, the race will be more in favor of the query timing out,
making it unlikely that this test will fail intermittently.

Bump the subsequent wait_for_log checks also with one second.
73 jobs for !5167 with 2765-servestale-intermittent-test-failure-144 in 21 minutes and 48 seconds (queued for 15 seconds)
detached
Status Job ID Name Coverage
  Autoconf
passed #1786611
amd64 linux
autoreconf

00:00:23

 
  Precheck
passed #1786613
amd64 linux
clang-format

00:00:21

passed #1786614
amd64 linux
coccinelle

00:03:38

passed #1786615
amd64 linux
danger

00:00:28

passed #1786612
amd64 linux
misc

00:00:19

passed #1786616
amd64 linux
tarball-create

00:01:46

 
  Build
passed #1786629
amd64 linux
clang:asan

00:02:14

passed #1786633
amd64 linux
clang:buster:amd64

00:01:03

passed #1786636
amd64 libvirt
clang:freebsd12:amd64

00:01:05

passed #1786637
amd64 libvirt
clang:freebsd13:amd64

00:03:09

passed #1786638
amd64 libvirt
clang:openbsd:amd64

00:01:53

passed #1786631
amd64 linux
clang:tsan

00:01:12

passed #1786617
amd64 linux
gcc:alpine3.13:amd64

00:00:46

passed #1786628
amd64 linux
gcc:asan

00:01:25

passed #1786626
amd64 linux
gcc:bionic:amd64

00:01:07

passed #1786621
amd64 linux
gcc:buster:amd64

00:00:42

passed #1786618
amd64 linux
gcc:centos7:amd64

00:00:46

passed #1786619
amd64 linux
gcc:centos8:amd64

00:00:50

passed #1786627
amd64 linux
gcc:focal:amd64

00:00:53

passed #1786632
amd64 linux
gcc:mutexatomics

00:00:48

passed #1786623
amd64 linux
gcc:out-of-tree

00:00:56

passed #1786622
amd64 linux
gcc:sid:amd64

00:01:08

passed #1786634
amd64 linux
gcc:softhsm2.4

00:00:52

passed #1786635
amd64 linux
gcc:softhsm2.6

00:00:49

passed #1786620
amd64 linux
gcc:stretch:amd64

00:01:04

passed #1786624
amd64 linux
gcc:tarball

00:01:01

passed #1786630
amd64 linux
gcc:tsan

00:01:07

passed #1786625
amd64 linux
gcc:tumbleweed:amd64

00:00:52

 
  Unit
passed #1786649
amd64 linux
unit:clang:asan

00:02:20

passed #1786653
amd64 linux
unit:clang:buster:amd64

00:01:30

passed #1786656
amd64 libvirt
unit:clang:freebsd12:amd64

00:01:49

passed #1786657
amd64 libvirt
unit:clang:freebsd13:amd64

00:03:34

passed #1786658
amd64 libvirt
unit:clang:openbsd:amd64

00:03:22

passed #1786651
amd64 linux
unit:clang:tsan

00:03:55

passed #1786639
amd64 linux
unit:gcc:alpine3.13:amd64

00:01:22

passed #1786648
amd64 linux
unit:gcc:asan

00:01:56

passed #1786646
amd64 linux
unit:gcc:bionic:amd64

00:01:18

passed #1786643
amd64 linux
unit:gcc:buster:amd64

00:02:32

passed #1786640
amd64 linux
unit:gcc:centos7:amd64

00:01:28

passed #1786641
amd64 linux
unit:gcc:centos8:amd64

00:01:32

passed #1786647
amd64 linux
unit:gcc:focal:amd64

00:01:41

passed #1786652
amd64 linux
unit:gcc:mutexatomics

00:01:28

passed #1786644
amd64 linux
unit:gcc:sid:amd64

00:01:18

passed #1786654
amd64 linux
unit:gcc:softhsm2.4

00:01:30

passed #1786655
amd64 linux
unit:gcc:softhsm2.6

00:01:24

passed #1786642
amd64 linux
unit:gcc:stretch:amd64

00:00:16

passed #1786650
amd64 linux
unit:gcc:tsan

00:04:28

passed #1786645
amd64 linux
unit:gcc:tumbleweed:amd64

00:01:22

 
  System
passed #1786669
amd64 linux
system:clang:asan

00:14:36

passed #1786673
amd64 linux
system:clang:buster:amd64

00:12:04

passed #1786676
amd64 libvirt
system:clang:freebsd12:amd64

00:11:41

passed #1786677
amd64 libvirt
system:clang:freebsd13:amd64

00:13:37

passed #1786671
amd64 linux
system:clang:tsan

00:16:53

passed #1786659
amd64 linux
system:gcc:alpine3.13:amd64

00:12:34

passed #1786668
amd64 linux
system:gcc:asan

00:15:12

passed #1786666
amd64 linux
system:gcc:bionic:amd64

00:12:14

passed #1786663
amd64 linux
system:gcc:buster:amd64

00:14:14

passed #1786660
amd64 linux
system:gcc:centos7:amd64

00:12:09

passed #1786661
amd64 linux
system:gcc:centos8:amd64

00:11:52

passed #1786667
amd64 linux
system:gcc:focal:amd64

00:13:07

passed #1786672
amd64 linux
system:gcc:mutexatomics

00:12:43

passed #1786664
amd64 linux
system:gcc:sid:amd64

00:11:54

passed #1786674
amd64 linux
system:gcc:softhsm2.4

00:12:17

passed #1786675
amd64 linux
system:gcc:softhsm2.6

00:12:44

passed #1786662
amd64 linux
system:gcc:stretch:amd64

00:11:47

passed #1786670
amd64 linux
system:gcc:tsan

00:18:05

passed #1786665
amd64 linux
system:gcc:tumbleweed:amd64

00:12:08

 
  Docs
passed #1786678
amd64 linux
docs

00:01:04

 
  Postcheck
passed #1786682
amd64 linux
cppcheck

00:00:57

passed #1786679
amd64 linux
flake8

00:00:21

passed #1786683
amd64 linux
gcov

00:00:32

78.0%
passed #1786680
amd64 linux
pylint

00:00:24

passed #1786681
amd64 linux
scan-build

00:03:43