Update scripts/ping_slack_about_package_release.sh
Update scripts/ping_slack_about_package_release.sh

Co-Authored-By: Tom Bocklisch <96835dd8bfa718bd6447ccc87af89ae1675daeca@rasa.com>
RasaHQ/rasa_nlu,RasaHQ/rasa_nlu,RasaHQ/rasa_nlu