chore(deps-dev): bump vitest from 2.1.8 to 2.1.9 (#739)

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 2.1.8 to 2.1.9.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v2.1.9/packages/vitest)

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

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package.json

@@ -39,6 +39,6 @@
     "typescript": "^5.7.3",
     "typescript-eslint": "^8.23.0",
     "vite": "^6.0.9",
-    "vitest": "^2.1.8"
+    "vitest": "^2.1.9"
   }
 }