Describe the bug

Coverage is not reported for files where JSX is used.

I've set up a minimal repository that recreates the issue with the same config - https://github.com/jMalojlo/sb-repro.
It's a basic button component with a story containing a play function to 'test' a click handler.
The component itself contains some JSX and imports some jsx and non-jsx module. What we see in the coverage report is that only the files without JSX are properly counted.
We're running an ejected CRA and I assume it's a Babel config issue, but can't figure this out myself.

Steps to reproduce the behavior

1. Clone https://github.com/jMalojlo/sb-repro
2. npm install && npx playwright install chrome
3. npm run storybook
4. npm run storybook-test runs tests with --coverage
5. npm run generate-storybook-coverage nyc report with lcov
6. open ./coverage/storybook/lcov-report/index.html to inspect the coverage HTML file
7. 

Environment

• Node.js version: 20.9.0
• NPM version: 10.1.0