File run-backups-with-the-correct-ruby.patch of Package discourse

diff --git a/lib/backup_restore.rb b/lib/backup_restore.rb
index f30d82e32d2..8e1385010fe 100644
--- a/lib/backup_restore.rb
+++ b/lib/backup_restore.rb
@@ -191,7 +191,7 @@ module BackupRestore
 
   def self.spawn_process!(type, user_id, opts)
     script = File.join(Rails.root, "script", "spawn_backup_restore.rb")
-    command = ["bundle", "exec", "ruby", script, type, user_id, opts.to_json].map(&:to_s)
+    command = [File.join(Rails.root, "bin", "bundle"), "exec", Gem.ruby, script, type, user_id, opts.to_json].map(&:to_s)
 
     pid = spawn({ "RAILS_DB" => RailsMultisite::ConnectionManagement.current_db }, *command)
     Process.detach(pid)