Fix jenkins.yml stage configuration.
Fix jenkins.yml stage configuration.

mozilla/snippets-service,mozilla/snippets-service,glogiotatidis/snippets-service,glogiotatidis/snippets-service,mozilla/snippets-service,mozmar/snippets-service,mozilla/snippets-service,glogiotatidis/snippets-service,mozmar/snippets-service,mozmar/snippets-service,mozmar/snippets-service,glogiotatidis/snippets-service