feat: add sveltekit

[RafaelMeir4]

Summary

This PR adds SvelteKit to the benchmarks.

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. It provides features like server-side rendering, routing, and can be deployed to various platforms including Node.js with the @sveltejs/adapter-node.

Changes

• Added benchmarks/sveltekit.mjs - benchmark entry point
• Added benchmarks/sveltekit-app/ - SvelteKit application with:
  • Simple JSON endpoint returning { hello: 'world' }
  • Node.js adapter configuration
• Updated lib/packages.js to include sveltekit
• Updated package.json with build script for sveltekit
• Updated .github/workflows/benchmarks.yml to run sveltekit benchmark

close #303

Checklist

• run npm run test && npm run benchmark --if-present
• tests and/or benchmarks are included
• documentation is changed or added
• commit message and code follows the Developer's Certification of Origin
  and the Code of conduct

[mcollina]

Linting is failing!

[mcollina]

Instead of relying on a custom build step only for vite, can you add it to package.json? In the future if we have other frameworks that need build steps we can do it there.

[RafaelMeir4]

Yes, I can add it. I'll fix the linting and move the build step to package.json.
I was hesitant to touch package.json at first, but it makes much more sense to keep it generic for future frameworks.

Instead of relying on a custom build step only for vite, can you add it to package.json? In the future if we have other frameworks that need build steps we can do it there.