Update .gitlab-ci.yml

1 job for gitlab-ci in 1 minute and 2 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #37
alpine docker
build

00:01:02

 
Name Stage Failure
failed
build Build There is an unknown failure, please try again
./tests/admin-tests.sh: line 40: test: : integer expression expected
FAIL [] Expected: 200

All tests done

./tests/admin-tests.sh: line 139: kill: (4620) - No such process
./tests/admin-tests.sh: line 142: kill: (4621) - No such process
./tests/admin-tests.sh: line 146: kill: (4617) - No such process
ERROR: Job failed: exit code 1