Fixed typo

2 jobs for v2021-11 in 3 minutes and 29 seconds
Name Stage Failure
failed
docker_publish_alpha Publish
$ deployer publish \ # collapsed multi-line command
Setting docker auth config ...done
importing image...done
publishing images
services.ub.uni-leipzig.de:11443/bdd_dev/folio/tools:v2021-11...done
/bin/bash: line 138: --tag: command not found
Running after_script
Uploading artifacts for failed job
ERROR: Job failed: exit code 1