chore(deps-dev): bump typescript from 5.6.3 to 5.9.3

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.6.3 to 5.9.3.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](https://github.com/microsoft/TypeScript/compare/v5.6.3...v5.9.3)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 5.9.3
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -42,7 +42,7 @@
     "jsdom": "^27.4.0",
     "svelte": "^5.53.6",
     "svelte-check": "^4.0.0",
-    "typescript": "~5.6.2",
+    "typescript": "~5.9.3",
     "vite": "^6.0.3",
     "vitest": "^4.0.16"
   },