fix(deps): update dependency express to ^4.21.2 (#36)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

functions/package-lock.json

@@ -15,7 +15,7 @@
   "dependencies": {
     "@ecomplus/application-sdk": "^22.0.0-firestore.1.15.7",
     "@google-cloud/firestore": "^7.11.0",
-    "express": "^4.21.1",
+    "express": "^4.21.2",
     "firebase-admin": "^11.11.1",
     "firebase-functions": "^4.9.0"
   },