deps(dev): bump vitest from 2.1.8 to 2.1.9

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
  update-type: version-update:semver-patch
...

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

package.json

@@ -120,7 +120,7 @@
     "typescript": "^5.7.3",
     "vite": "^6.0.10",
     "vite-tsconfig-paths": "^4.3.2",
-    "vitest": "^2.0.1",
+    "vitest": "^2.1.9",
     "xvfb-maybe": "^0.2.1"
   },
   "overrides": {