Update shopify/lighthouse-ci-action to rely on Shopify CLI 3.x + Theme Access app

[karreiro]

Currently, the Lighthouse CI GH action relies on Shopify CLI 2.x:
https://github.com/Shopify/lighthouse-ci-action/blob/main/entrypoint.sh#L130

This issues aims to update it to rely on the Theme Access app and Shopify CLI 3.x.

⚠️ This issue impacts documentation: https://shopify.dev/themes/tools/lighthouse-ci

[knjshimi]

Hi @karreiro, just checking if this is still on Shopify plans for the near future. Thank you!

[karreiro]

Hi, @kenji-twp, thanks for reaching out. Yes, this is definitely on our plans, still we don't have a specific timeframe at the moment.

[knjshimi]

Thanks @karreiro! Just to confirm, is the current version of the shopify lighthouse CI action working despite of it using Shopify CLI 2? If so, will it continue to work when v2 sunsets?

[satish-bjss]

Why do we hardcode ruby version rather install within Shopify CLI as an internal dependency OR allow to apply

-use: ruby/setup-ruby@v1 with: ruby-version: x.x bundler: 'latest'