Change returns for nexts to please rubocop (behaviour is the same)

Author: ikbenale

lib/api/deploy_keys.rb

@@ -53,15 +53,15 @@ class DeployKeys < Grape::API
             key = user_project.deploy_keys.find_by(key: attrs[:key])
             if key
               present key, with: Entities::SSHKey
-              return
+              next
             end
 
             # Check for available deploy keys in other projects
             key = current_user.accessible_deploy_keys.find_by(key: attrs[:key])
             if key
               user_project.deploy_keys << key
               present key, with: Entities::SSHKey
-              return
+              next
             end
           end