Added support for deployment using kamal with Github Actions

I recently set up Kamal deployment for my Rails dev kit, Shore, using GitHub Actions.

➡️ View the deploy.yml

While setting this up, I forgot to set one of the environment variables from secrets in the workflow — something to watch out for.

Next up: I plan to move the container registry from Docker Hub to GitHub Container Registry.

The deploy step currently takes around 4 minutes, so plan to optimize it.