[DO-1670] add msg files to test env (!96)

Co-authored-by: Rustam Tagaev <rustam.tagaev@avroid.tech>
Reviewed-on: https://git.avroid.tech/DevOps/jenkins-pipelines/pulls/96
Reviewed-by: Vasiliy Chipizhin <vasiliy.chipizhin@avroid.team>
Reviewed-by: Denis Patrakeev <denis.patrakeev@avroid.team>

jobs-dsl/jobs/Cloud/Deploy/Backend/msg_files_deploy.groovy

@@ -7,7 +7,7 @@ pipelineJob('Cloud/Deploy/Backend/msg-files-deploy') {
     parameters {
         choice {
             name('ENV')
-            choices(['DEV'])
+            choices(['DEV', 'TEST'])
             description('Select one of environments')
         }
         choiceParameter {