build: use bunchee for bundling

[huozhi]

bunchee is a zero configuration bundler based on rollup and swc, it can get rid of the webpack runtime code which relying on nodejs runtime variable like __dirname ncc brought in

Also faster ⚡️

✨ Built styled-jsx
✅ Finished in 900 ms
$ bunchee src/webpack.js -f cjs --runtime node -o dist/webpack/index.js
✨ Built styled-jsx
✅ Finished in 226 ms
$ bunchee src/index.js -f cjs --runtime node -e react -o dist/index/index.js
✨ Built styled-jsx
✅ Finished in 63 ms
✨  Done in 2.52s.

x-ref: #784
x-ref: vercel/next.js#40165

[github-actions]

🎉 This PR is included in version 5.0.5 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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