gitlab-ci: include job number in the artfacts zipball filename

4 jobs for rb-android in 8 minutes and 53 seconds
latest
Status Job ID Name Coverage
  Test
passed #776
android

00:08:53

passed #779
debian-testing

00:03:47

passed #777
go-1.13

00:02:51

passed #778
go-1.14

00:01:13