Publish images to ghcr

[mgna7]

We require that all our image be pushed to the github packages.
The current base workflow via github actions is the minimal build we require for:

• Whenever a PR is raised
• Whenever a PR is merged -> develop branch;
• Whenever the develop -> master merge happens.

In addition, we need the following, yet another, subsequent gh-action, which pushes a successful build to ghcr:

• Whenever a PR is raised
• Whenever a PR is merged -> develop branch;
• Whenever the develop -> master merge happens.

References:

• https://github.com/features/packages
• https://docs.github.com/en/actions/security-guides/automatic-token-authentication
• https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry
• https://docs.github.com/en/actions/security-guides/automatic-token-authentication#using-the-github_token-in-a-workflow
• https://docs.github.com/en/actions/security-guides/automatic-token-authentication#permissions-for-the-github_token

[mgna7]

Tested this workflow and able to upload image to ghcr.
CI_CD_PAT token which was created is not available to my account. I have tested this workflow using my own account and able to upload the image

[codecakes]

@mgna7 what we just did with ghcr-test repo and CI_CD_PAT, you mean that's not happening with this repo right?