chore(deps-dev): bump @sveltejs/vite-plugin-svelte in /example

Bumps [@sveltejs/vite-plugin-svelte](https://github.com/sveltejs/vite-plugin-svelte/tree/HEAD/packages/vite-plugin-svelte) from 3.1.1 to 3.1.2.
- [Release notes](https://github.com/sveltejs/vite-plugin-svelte/releases)
- [Changelog](https://github.com/sveltejs/vite-plugin-svelte/blob/@sveltejs/vite-plugin-svelte@3.1.2/packages/vite-plugin-svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/vite-plugin-svelte/commits/@sveltejs/vite-plugin-svelte@3.1.2/packages/vite-plugin-svelte)

---
updated-dependencies:
- dependency-name: "@sveltejs/vite-plugin-svelte"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

example/package.json

@@ -12,7 +12,7 @@
   },
   "devDependencies": {
     "@sveltejs/kit": "^1.30.3",
-    "@sveltejs/vite-plugin-svelte": "^3.1.1",
+    "@sveltejs/vite-plugin-svelte": "^3.1.2",
     "svelte": "^3.59.2",
     "svelte-check": "^3.8.6",
     "svelte-preprocess": "^5.1.4",