Remove commas from list of placeholders
Remove commas from list of placeholders

Visually, the space between them is enough. Also the oxford comma thing didn’t
actuall work :|

gov-cjwaszczuk/notifications-admin,alphagov/notifications-admin,gov-cjwaszczuk/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin,gov-cjwaszczuk/notifications-admin,alphagov/notifications-admin,gov-cjwaszczuk/notifications-admin