Is there a way to use private images from a registry with authentication for custom GitHub Docker container actions? Would like to point at runs.image to a private docker image. Ideally, one which is uploaded to a GitHub Packages registry.
# action.yml
name: 'Hello World'
description: 'Greet someone'
inputs:
who_to_greet: # id of input
description: 'Who to greet'
required: true
default: 'World'
outputs:
time: # id of output
description: 'The time we greeted you'
runs:
using: 'docker'
image: 'Dockerfile'
args:
- ${{ inputs.who_to_greet }}
https://docs.github.com/en/actions/creating-actions/creating-a-docker-container-action