[#2] Fixed bad indentation

3 jobs for preprod in 4 minutes and 49 seconds (queued for 1 second)
Status Name Job ID Coverage
  Build
passed maven-build #143192
build

00:04:09

 
  Package
failed docker-build #143193
build

00:00:40

 
  Deploy
skipped deploy #143194
preprod
 
Name Stage Failure
failed
docker-build Package
WARNING! Your password will be stored unencrypted in /var/lib/gitlab-runner/.docker/config.json.
Configure a credential helper to remove this warning. See
https://docs.docker.com/engine/reference/commandline/login/#credentials-store

Login Succeeded
$ docker build --rm ./ -t ${IMAGE_FQDN}
invalid argument ":preprod" for "-t, --tag" flag: invalid reference format
See 'docker build --help'.
ERROR: Job failed: exit status 1