Update .gitlab-ci.yml

2 jobs for master in 3 minutes and 9 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed #38
react-client
build

00:02:57

 
  Test
failed #39
react-client
test

00:00:12

 
Name Stage Failure
failed
test Test
Downloading artifacts for build (38)...
Downloading artifacts from coordinator... ok
id=38 responseStatus=200 OK token=sdq2bcsY
Executing "step_script" stage of the job script
$ echo "packaging"
packaging
$ tar -zvf react-client/build
tar: You must specify one of the '-Acdtrux', '--delete' or '--test-label' options
Try 'tar --help' or 'tar --usage' for more information.
ERROR: Job failed: exit code 1