build(deps-dev): bump vitest

Bumps the development group in /services/backend with 1 update: [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `vitest` from 5.0.0 to 5.0.1
- [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/v5.0.1/packages/vitest)

---
updated-dependencies:
- dependency-name: vitest
  dependency-version: 5.0.1
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: development
...

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

services/backend/package.json

@@ -42,6 +42,6 @@
     "@types/ws": "^8.18.1",
     "tsx": "^4.23.13",
     "typescript": "^7.0.2",
-    "vitest": "^5.0.0"
+    "vitest": "^5.0.1"
   }
 }