fix variable naming

13 jobs for example-dashboard in 2 minutes and 26 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #610254
docker
build:backend

00:00:33

passed #610255
linux shell
build:docker

00:00:25

 
  Test
passed #610261
docker
test:dashboard

00:00:55

passed #610257
docker
test:database

00:00:52

passed #610264
docker
test:file

00:00:32

passed #610256
docker
test:gotest

00:01:53

92.5%
passed #610266
docker
test:healthz

00:00:34

passed #610258
docker
test:scenario

00:00:51

passed #610260
docker
test:signal

00:01:01

passed #610259
docker
test:simulationmodel

00:00:59

passed #610263
docker
test:simulator

00:00:54

passed #610265
docker
test:user

00:00:34

passed #610262
docker
test:widget

00:00:54