build(deps-dev): bump vitest from 2.1.1 to 2.1.9 (#96)

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 2.1.1 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
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -23,7 +23,7 @@
     "miniflare": "3.20240909.4",
     "prettier": "3.3.3",
     "typescript": "^5.3.3",
-    "vitest": "^2.1.0",
+    "vitest": "^2.1.9",
     "wrangler": "^3.78.7"
   },
   "engines": {