Push container to registry

[Ceredron]

Description

Push container to Github Container Registry so that it can be pulled by the container app.

Related Issue(s)

• Push container til registry #141

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)
• All tests run green

Documentation

• User documentation is updated with a separate linked PR in altinn-studio-docs. (if applicable)

[RagnarFatland-Avanade]

Consider instead setting up a separate build-and-deoploy action which is Dispatch for deploys to the environments.

[Ceredron]

Consider instead setting up a separate build-and-deoploy action which is Dispatch for deploys to the environments.

Fixed