Change database migration to be done with Entity Framework tooling in the release pipeline instead of with yuniql during application start

[olebhansen]

Description

Find out how to set up EF tooling to perform database migration and add a release pipeline step. It's a goal to use the same mechanism to perform database migration for local developlent using Aspire.

Additional information

The altinn-studio team is already doing database migration this way.
https://github.com/Altinn/altinn-studio/blob/main/backend/Migrations.Dockerfile

Tasks

• Add a step to the release pipline for database migration

Acceptance criteria

• Database migration is performed as a step during deployment and not by the Profile application

[olebhansen]

Spinning the namespace-change out in a separate task (#212) as this requires some additional logistics/coordination with consumers.

[SandGrainOne]

I reopened #142 to solve a part of this issue. Postponing further work slightly in favor of #214.

[olebhansen]

See also #264