fix(deps): update dependency @google-cloud/firestore to ^7.11.6 (#44)

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

Author: renovate[bot]

functions/package-lock.json

@@ -13,7 +13,7 @@
   },
   "dependencies": {
     "@ecomplus/application-sdk": "^22.0.0-firestore.1.15.7",
-    "@google-cloud/firestore": "^7.11.3",
+    "@google-cloud/firestore": "^7.11.6",
     "cors": "^2.8.5",
     "express": "^4.21.2",
     "firebase-admin": "^11.11.1",