Add rolldown-vite support

[sapphi-red]

While this plugin mostly works with rolldown-vite, there are a few areas where it could leverage Rolldown's built-in features to improve performance.

This PR includes the following changes:

• Use build.rollupOptions.inject for rolldown-vite: this avoids the extra parsing step by @rollup/plugin-inject and can improve perf.
• Use the banner hook of a Rollup plugin for optimizeDeps.rollupOptions instead of the banner option in optimizeDeps.esbuildOptions: most options in optimizeDeps.esbuildOptions are mapped to optimizeDeps.rollupOptions, but banner is not due to incompatibility.
• Add CI to ensure rolldown-vite support

I tested this with https://github.com/owncloud/web ¹ and it reduced the build time ~3.5s (~25%).

close vitejs/rolldown-vite#133

Footnotes

1. I used sass-embedded instead of sass locally ↩

[davidmyersdev]

@sapphi-red I fixed an issue with the PNPM install on CI, but it looks like the new workflow is failing for another reason now. Mind taking a look at that?

[sapphi-red]

@davidmyersdev
Thanks! The error was caused by the node version (Vite 7 requires 20.19+, 22.10+). I've pushed a commit to update the node version in CI.

[davidmyersdev]

That did it! Thank you!

[davidmyersdev]

Released in v0.24.0.