Wrong configuration filename

When scaffolding for Cypress v12 it still says "cypress.json" file, should be "cypress.config.js"

```
$ npx @bahmutov/cly init -b
scaffolding new Cypress project
✅ scaffolded "cypress" folder with a single example spec (v10)
you can configure additional options in cypress.json file
see https://on.cypress.io/configuration
```

Run the shown npx @bahmutov/cly init -b command and locate the scaffolded configuration guidance in the CLI output. Change the referenced filename from cypress.json to cypress.config.js, then rerun the command to verify the message uses the current Cypress v12 filename.

Written by the indexing model from the issue text.