docker: use latest Knot DNS

12 jobs for minor-fixes in 33 minutes and 42 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Build
passed #307270
amd64 linux docker
archive

00:00:35

 
  Deploy
passed #307271
respdiff
obs:trigger

00:00:14

 
  Deploy Test
passed #307272
respdiff delayed
obs:build:all

00:30:05

passed #307273
respdiff delayed
obs:centos7:x86_64

00:32:28

passed #307275
respdiff delayed
obs:debian10:x86_64

00:32:52

passed #307274
respdiff delayed
obs:debian9:x86_64

00:24:19

passed #307276
respdiff delayed
obs:fedora29:x86_64

00:30:37

passed #307277
respdiff delayed
obs:fedora30:x86_64

00:30:28

passed #307278
respdiff delayed
obs:leap15:x86_64

00:30:00

passed #307279
respdiff delayed
obs:ubuntu1604:x86_64

00:28:24

passed #307280
respdiff delayed
obs:ubuntu1804:x86_64

00:31:18

passed #307281
respdiff delayed
obs:ubuntu1904:x86_64

00:26:56