Docker image publish workflow

[ulises-jeremias]

Summary

Build/push CLI Docker image on version tags.

CNA mapping

CNA: publish-docker.yml + Dockerfile.

Acceptance criteria

• Dockerfile for CLI
• Workflow on tags create-awesome-python-app@*
• Secrets documented in DISTRIBUTION_SETUP

Blocked by

none

Blocks

none

Reference

Parity matrix (workspace): knowledge/create-python-app-parity-matrix.md
Reference repo: https://github.com/Create-Node-App/create-node-app

Parent epic

#9