modules/http ephemeral cert: update before expiration

Instead of three days after.  This bug was not introduced by the recent
commits moving the code.
27 jobs for <span class="ref-name">http-intermediate</span> in 6 minutes and 6 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #273757
docker linux amd64
archive

00:01:13

passed #273758
docker linux amd64
build

00:01:02

passed #273759
docker linux amd64
build-asan

00:01:11

passed #273760
docker
kres-gen

00:01:01

 
  Test
passed #273761
docker delayed
build:darwin

00:00:22

passed #273762
docker linux amd64
deckard

00:02:44

passed #273763
docker delayed
doc

00:01:08

passed #273764
dind
docker

00:02:03

passed #273765
docker delayed
lint:other

00:00:50

passed #273766
docker linux amd64 delayed
lint:pedantic

00:01:11

passed #273767
docker linux amd64
lint:scan-build

00:02:31

passed #273768
docker linux amd64
lint:tidy

00:03:14

passed #273769
privileged
pkg:epel-7

00:02:04

passed #273770
privileged
pkg:fedora-29

00:02:48

passed #273771
docker linux amd64
respdiff:basic

00:04:52

passed #273772
docker linux amd64 delayed
test:valgrind

00:02:18

 
  Extended
canceled #273774
respdiff
fwd-tls6-kresd.udp6

canceled #273775
respdiff
fwd-udp6-kresd.udp6

canceled #273779
respdiff
fwd-udp6-unbound.tcp6

canceled #273780
respdiff
fwd-udp6-unbound.tls6

canceled #273778
respdiff
fwd-udp6-unbound.udp6

canceled #273777
respdiff
iter.tls6

canceled #273776
respdiff
iter.udp6

canceled #273773
docker linux amd64
pytests

canceled #273781
respdiff
resperf:fwd-tls6.udp-asan

canceled #273782
respdiff
resperf:fwd-udp6.udp-asan

canceled #273783
respdiff
resperf:iter.udp-asan