Automatic release to staging once every day if integration tests passes

Automatically promote dev images (flotilla, sara etc) to staging if the integrations tests passes.

Could be set up as a cron job that runs for example 6 am every morning monday - friday.
Would make us have a more consistent up-to-date staging environment.

If the integration tests fails, it should report a teams message that it failed and the promotion failed.

Start by locating the integration-test entry point and the existing process that promotes dev images such as flotilla and sara to staging. Define the weekday schedule, promotion behavior after passing tests, and the Teams failure notification, then verify both successful promotion and failed-test reporting.

Written by the indexing model from the issue text.