CI: install missing python3-django-filters

Signed-off-by: Rémi Duraffort <remi.duraffort@linaro.org>
10 jobs for master in 10 minutes and 52 seconds (queued for 1 second)
Status Name Job ID Coverage
  Test
passed dispatcher/install/buster #59811
amd64

00:04:29

passed dispatcher/install/stretch-backports #59809
amd64

00:04:29

passed dispatcher/upgrade/buster #59812
amd64

00:08:15

passed dispatcher/upgrade/stretch-backports #59810
amd64

00:06:47

passed server/install/buster #59807
amd64

00:04:40

passed server/install/stretch-backports #59805
amd64

00:04:44

passed server/upgrade/buster #59808
amd64

00:10:12

passed server/upgrade/stretch-backports #59806
amd64

00:09:03

 
  Publish
skipped failure #59813
amd64
passed success #59814
amd64

00:00:39