transform variables env into string because gitlab-ci was not happy

7 jobs for 13-fromBrocaarToLoraserver in 15 minutes and 39 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Lint
passed #15608141
lint:gofmt

00:02:01

passed #15608143
lint:vet

00:01:05

 
  Test
passed #15608145
test:coverage

00:02:01

54.7%
passed #15608144
test:unit

00:01:38

 
  Integration
passed #15608147
docker
integration:oneShot

00:07:50

passed #15608149
docker
integration:ramp

00:11:34

passed #15608150
docker
integration:repeat

00:09:21