ci/README: add --no-cache to docker builds to force pkg update

27 jobs for ci-update in 10 minutes and 46 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Build
passed #285645
amd64 linux docker
archive

00:02:40

passed #285646
amd64 linux docker
build

00:02:48

passed #285647
amd64 linux docker
build-asan

00:02:47

passed #285648
docker
kres-gen

00:02:46

 
  Test
passed #285649
docker delayed
build:darwin

00:00:28

passed #285650
amd64 linux docker
deckard

00:03:38

passed #285651
docker delayed
doc

00:01:10

passed #285652
dind
docker

00:01:59

passed #285653
docker delayed
lint:other

00:01:10

passed #285654
amd64 linux docker delayed
lint:pedantic

00:01:19

passed #285655
amd64 linux docker
lint:scan-build

00:02:45

passed #285656
amd64 linux docker
lint:tidy

00:03:22

passed #285657
privileged
pkg:epel-7

00:01:50

passed #285658
privileged
pkg:fedora-29

00:02:45

passed #285659
amd64 linux docker
respdiff:basic

00:02:50

passed #285660
amd64 linux docker delayed
test:valgrind

00:01:58

 
  Extended
passed #285662
respdiff
fwd-tls6-kresd.udp6

00:00:18

passed #285663
respdiff
fwd-udp6-kresd.udp6

00:00:15

passed #285667
respdiff
fwd-udp6-unbound.tcp6

00:00:18

passed #285668
respdiff
fwd-udp6-unbound.tls6

00:00:17

passed #285666
respdiff
fwd-udp6-unbound.udp6

00:00:18

passed #285665
respdiff
iter.tls6

00:00:18

passed #285664
respdiff
iter.udp6

00:00:17

passed #285661
amd64 linux docker
pytests

00:04:10

passed #285669
respdiff
resperf:fwd-tls6.udp-asan

00:00:17

passed #285670
respdiff
resperf:fwd-udp6.udp-asan

00:00:17

passed #285671
respdiff
resperf:iter.udp-asan

00:00:17