[Registrar] Migrate Dockerfile setup in devstack

[UsamaSadiq]

Description

• Issue created under the implementation of [DEPR-2U] [Discovery] How do we build devstack images post devstack-deprecation? #587

Tasks

Beta Give feedback

1. Move the Dockerfile and push-docker-image.yml files present in the IDA to devstack repository
2. Schedule the workflow to run once a day to build and publish dev image to docker.io/edxops org
3. Add workflow_dispatch option to provide option to trigger the workflow manually if required
4. Setup email alert in case the workflow fails in building and publishing the image to notify the owning team in case of failure
5. Test the workflow once on pull request to verify everything is working as expected
6. Update the devstack references to pull the image from the updated host organization if needed
7. Update the GoCD pipeline code to reference Dockerfile from the updated path in devstack repository

[UsamaSadiq]

After finalizing the POC, the associated PRs and issues will now be created in the public-dockerfiles repository instead so closing this issue to create one over there instead.