chore(backend): Update dependency msw to v2.8.4 (#5998)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Nikos Douvlis <nikosdouvlis@gmail.com>
Co-authored-by: panteliselef <panteliselef@outlook.com>

Author: 3 people

packages/backend/package.json

@@ -115,7 +115,7 @@
   },
   "devDependencies": {
     "@edge-runtime/vm": "5.0.0",
-    "msw": "2.8.2",
+    "msw": "2.8.4",
     "npm-run-all": "^4.1.5",
     "svix": "^1.65.0",
     "vitest-environment-miniflare": "2.14.4"