Babel 8 support

[stof]

• Rollup Plugin Name: babel
• Rollup Plugin Version:

Feature Use Case

Babel 8 has been released: https://babeljs.io/blog/2026/06/16/8.0.0/

It would be great to support it in @rollup/plugin-babel

Feature Proposal

[dasa]

There's some discussion on this topic at #2010