Update .gitlab-ci.yml

1 job for gitlab-ci in 1 minute and 6 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
failed #44
alpine docker
build

00:01:06

 
Name Stage Failure
failed
build Build There is an unknown failure, please try again
./tests/admin-tests.sh: line 49: test: : integer expression expected
FAIL [] Expected: 200

All tests done

./tests/admin-tests.sh: line 148: kill: (4629) - No such process
./tests/admin-tests.sh: line 151: kill: (4630) - No such process
./tests/admin-tests.sh: line 155: kill: (4626) - No such process
ERROR: Job failed: exit code 1