ci: fix release step script (!101)

* Fix the yaml config for the release step to handle a multi-line command

https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/merge_requests/101

.gitlab-ci.yml

@@ -54,8 +54,8 @@ release:
     GIT_DEPTH: 0
   rules:
     - if: $CI_COMMIT_TAG =~ /^v.*$/
-  script:
-    - docker run --rm --privileged \
+  script: |
+    docker run --rm --privileged \
       -v $PWD:/go/src/gitlab.com/hectorjsmith/fail2ban-prometheus-exporter \
       -w /go/src/gitlab.com/hectorjsmith/fail2ban-prometheus-exporter \
       -v /var/run/docker.sock:/var/run/docker.sock \