Adds in SHOPIFY_CLI_ENV=development variable to dev.yml

[andguy95]

WHY are these changes introduced?

In the latest version of the Shopify/cli the custom-oclif-loader.ts that detects if we are in this monorepo and in development has a new isDevelopment() check to do the custom cli plugin loader that looks for a SHOPIFY_CLI_ENV=development.

Without it, the custom-oclif-loader.ts will not be able to load the cli from the monorepo as it won't see we are in dev mod.

WHAT is this pull request doing?

Adds in SHOPIFY_CLI_ENV=development to env: in dev.yml.

HOW to test your changes?

1. Go to dev.ts in hydrogen/packages/cli/src/commands/hydrogen/dev.ts
2. Make arbitrary update to the run()
3. In the cli project run npm run build
4. In the template/skeleton project run npx shopify hydrogen dev
   • To test locally i created an alias shopify-dev pointing to a locally built version of the Shopiy/cli

# Create the following file in ~/bin/shopify:#!/usr/bin/env node

process.env.SHOPIFY_RUBY_BINDIR = "/opt/rubies/3.1.2/bin"
process.env.SHOPIFY_HOMEBREW_FORMULA = "shopify-cli"

import("/Users/<your-user>/src/github.com/Shopify/cli/packages/cli/bin/run.js")

alias shopify-dev='/Users/$USER/bin/shopify'

NOTE: This is required for the latest version of Shopify/cli so by adding this its not going to do anything. However, this will be applicable when we get this https://github.com/Shopify/cli/pull/6827 merged and Shopify/cli packages bumped in the monorepo

Checklist

• I've read the Contributing Guidelines
• I've considered possible cross-platform impacts (Mac, Linux, Windows)
• I've added a changeset if this PR contains user-facing or noteworthy changes
• I've added tests to cover my changes
• I've added or updated the documentation