Downstreamed changes from @embroider/[email protected]

I made a few changes to how the codemod updates the addon package.

• babel.config.json: Replaced Babel plugins with decorator-transforms
• unpublished-development-types/index.d.ts: Added a comment as a reminder to configure @glint/environment-ember-template-imports if the package is installed
• package.json: Updated the latest versions
• tsconfig.json: Added rootDir option