deps(deps-dev): bump vitest from 4.1.8 to 4.1.9

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 4.1.8 to 4.1.9.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Changelog](https://github.com/vitest-dev/vitest/blob/main/docs/releases.md)
- [Commits](https://github.com/vitest-dev/vitest/commits/HEAD/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 4.1.9
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

package.json

@@ -16,7 +16,7 @@
     "prettier": "^3.8.3",
     "simple-git-hooks": "^2.13.1",
     "typescript": "^6.0.3",
-    "vitest": "^4.1.8",
+    "vitest": "^4.1.9",
     "wrangler": "^4.76.0"
   },
   "name": "xget",