Rails 7 introduced the gem:

```
gem "jsbundling-rails", "~> 0.1.0"
```

Which no longer relies on `webpacker`. 

Issue #1202 was opened since developers using jsbundling would expect `yarn` to be available but won't have the `webpacker` gem which we use to gate detection for yarn installation.

With this change we now install nodejs when a `package.json` is detected and yarn when `yarn.lock` is detected.

Rails 7 introduced the gem:

```
gem "jsbundling-rails", "~> 0.1.0"
```

Which no longer relies on `webpacker`. 

Issue #1202 was opened since developers using jsbundling would expect `yarn` to be available but won't have the `webpacker` gem which we use to gate detection for yarn installation.

With this change we now install nodejs when a `package.json` is detected and yarn when `yarn.lock` is detected.