* add burnin-label-notification.yml

* fix burnin-label-notification.yml

* fix burnin-label-notification.yml

* fix burnin-label-notification.yml

* fix burnin-label-notification.yml

* Update .github/workflows/burnin-label-notification.yml

Co-authored-by: Benjamin Kampmann <ben@gnunicorn.org>

Co-authored-by: Benjamin Kampmann <ben@gnunicorn.org>
Co-authored-by: Gav Wood <gavin@parity.io>