[DO-1519] some refactoring (!77)

Co-authored-by: Rustam Tagaev <rustam.tagaev@avroid.tech>
Reviewed-on: https://git.avroid.tech/DevOps/jenkins-pipelines/pulls/77

pipelines/Cloud/Apps-Backend/msg-messenger-core-api.groovy

@@ -84,7 +84,7 @@ slaveTemplates.jnlp {
                         }
                         stage('deploy application'){
                             if (git.getBranch() == publishBranch){
-                                build job: 'Cloud/Deploy/msg-messenger-core-api-deploy',
+                                build job: 'Cloud/Deploy/Backend/msg-messenger-core-api-deploy',
                                       parameters: [
                                           string(name: 'ENV', value: 'DEV'),
                                           string(name: 'APP_VERSION', value: tag)