Fix breaking changes from ruby-lsp-rails upgrade pt2

Author: johansenja

lib/ruby_lsp/rails/factory_bot/addon.rb

@@ -60,7 +60,7 @@ def workspace_did_change_watched_files(changes)
         # the addon must be registered as a rails server addon once the server has booted
         def register_addon!
           @addon_registered ||= # rubocop:disable Naming/MemoizedInstanceVariableName
-            begin
+             begin
               addon_path = File.expand_path("server_addon.rb", __dir__)
               runner_client.register_server_addon(addon_path)
               true