chore(deps-dev): bump vitest from 1.1.0 to 1.6.1 in /apps/backend

Bumps [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest) from 1.1.0 to 1.6.1.
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v1.6.1/packages/vitest)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

apps/backend/package.json

@@ -28,7 +28,7 @@
     "supertest": "catalog:",
     "ts-node": "10.9.2",
     "tsx": "^4.7.1",
-    "vitest": "1.1.0"
+    "vitest": "1.6.1"
   },
   "dependencies": {
     "@aws-sdk/client-s3": "catalog:",