build(deps-dev): Bump svelte from 5.42.2 to 5.42.3

Bumps [svelte](https://github.com/sveltejs/svelte/tree/HEAD/packages/svelte) from 5.42.2 to 5.42.3.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/main/packages/svelte/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/commits/[email protected]/packages/svelte)

---
updated-dependencies:
- dependency-name: svelte
  dependency-version: 5.42.3
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -53,7 +53,7 @@
     "node-gyp": "^11.2.0",
     "prettier": "^3.6.1",
     "prettier-plugin-svelte": "^3.3.3",
-    "svelte": "5.42.2",
+    "svelte": "5.43.0",
     "svelte-check": "^4.3.1",
     "svelte-eslint-parser": "^1.3.0",
     "typescript": "5.9.3",