How to deploy Shopify themes with GitLab

What this post added

This post introduces a new workflow for deploying Shopify themes using GitLab CI/CD. It details the setup of Shopify API access tokens as protected CI/CD variables, the creation of a `config.yml` file to map these variables to Shopify themes, and the implementation of a `.gitlab-ci.yml` pipeline with staging and production stages. The pipeline installs the ThemeKit CLI and deploys theme changes based on branch pushes (staging) and tag pushes (production).