Downstreamed changes from @embroider/[email protected]

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

• babel.config.json: Updated Babel dependencies
• rollup.config.mjs: Simplified addon.publicEntrypoints() and addon.appReexports() (the file pattern arrays are static; they are no longer derived in the analyze-addon step)
• rollup.config.mjs: Added addon.gjs() (i.e. allow writing <template>-tag components)
• package.json: Replaced ember-cli-typescript with typescript
• tsconfig.json: Extended @tsconfig/ember