Disable make clean at the end of configure step in GitLab CI

(cherry picked from commit a1d783bb)
14 jobs for gitlab-ci-dont-run-make-clean-v9_12 in 7 minutes and 30 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Precheck
passed #48063
amd64 docker linux
precheck:debian:sid:amd64

00:00:16

 
  Build
passed #48064
amd64 docker linux
build:centos:centos6:amd64

00:01:58

passed #48065
amd64 docker linux
build:centos:centos7:amd64

00:02:06

passed #48066
amd64 docker linux
build:debian:sid:amd64

00:01:22

passed #48067
i386 docker linux
build:debian:sid:i386

00:02:19

 
  Test
passed #48076
amd64 docker linux
install:debian:sid:amd64

00:02:14

passed #48072
amd64 docker linux
systemtest:centos:centos6:amd64

00:04:39

passed #48073
amd64 docker linux
systemtest:centos:centos7:amd64

00:04:40

passed #48074
amd64 docker linux
systemtest:debian:sid:amd64

00:04:46

passed #48075
i386 docker linux
systemtest:debian:sid:i386

00:04:51

passed #48068
amd64 docker linux
unittest:centos:centos6:amd64

00:00:59

passed #48069
amd64 docker linux
unittest:centos:centos7:amd64

00:00:52

passed #48070
amd64 docker linux
unittest:debian:sid:amd64

00:00:48

passed #48071
i386 docker linux
unittest:debian:sid:i386

00:00:51