optimize build pipeline to minimize code duplication.

[jimassa]

Is your feature request related to a problem? Please describe. There are 3 pipelines that build the images and use the same gh action code

• build https://github.com/microsoft/retina/blob/main/.github/workflows/images.yaml
• release https://github.com/microsoft/retina/blob/main/.github/workflows/release-images.yaml
• e2e https://github.com/microsoft/retina/blob/main/.github/workflows/integration.yaml

Describe the solution you'd like A good solution will be to create a template that will reuse the code and pass parameters based on what is needed in each pipeline.

Describe alternatives you've considered A clear and concise description of any alternative solutions or features you've considered.

Additional context Add any other context or screenshots about the feature request here.

[hainenber]

While I agree a GH composite action for these duplicate steps would help in reducing boilerplate-ness, I think the current implementation which expose all the build steps is very readable and comprehensive. In additional, I feel like the template could turn into a very complex one once more parameters are added as build steps deviating from each other.

Just my 2cent regarding this :D