build(deps-dev): bump svelte from 3.48.0 to 3.49.0 in /demos (#2992)

Bumps [svelte](https://github.com/sveltejs/svelte) from 3.48.0 to 3.49.0.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/compare/v3.48.0...v3.49.0)

---
updated-dependencies:
- dependency-name: svelte
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

demos/package.json

@@ -30,7 +30,7 @@
     "react": "^18.0.0",
     "react-dom": "^18.0.0",
     "sass": "^1.49.7",
-    "svelte": "^3.48.0",
+    "svelte": "^3.49.0",
     "tailwindcss": "^2.2.19",
     "typescript": "^4.5.5",
     "uuid": "^8.3.2",