fix(deps): update dependency firebase-admin to v12 (#201)

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

Author: renovate[bot]

functions/package.json

@@ -15,7 +15,7 @@
     "@ecomplus/application-sdk": "^22.0.0-firestore.1.15.7",
     "@google-cloud/firestore": "^7.1.0",
     "express": "^4.18.2",
-    "firebase-admin": "^11.11.1",
+    "firebase-admin": "^12.0.0",
     "firebase-functions": "^4.5.0"
   },
   "private": true