[DO-0] add job description for msg-files (!99)

Co-authored-by: Rustam Tagaev <rustam.tagaev@avroid.tech>
Reviewed-on: https://git.avroid.tech/DevOps/jenkins-pipelines/pulls/99
Reviewed-by: Denis Patrakeev <denis.patrakeev@avroid.team>

pipelines/Cloud/Apps-Backend/msg-files.groovy

@@ -69,6 +69,7 @@ slaveTemplates.jnlp {
 
                         String version = props.tool.poetry.version
                         tag = "${version}-${gitVars.GIT_COMMIT.take(5)}"
+                        currentBuild.description = tag
                         String imageName = "${env.JENKINS_DOCKER_REGISTRY}/" +
                                            "${dockerGroup}/${dockerProject}:${tag}"