Merge pull request #4 from bearkfear/renovate/pin-dependencies

fix(deps): pin dependencies

Author: bearkfear

functions/package.json

@@ -12,9 +12,9 @@
     "node": "14"
   },
   "dependencies": {
-    "express": "^4.17.1",
+    "express": "4.17.1",
     "firebase-admin": "9.11.1",
-    "firebase-functions": "^3.7.0"
+    "firebase-functions": "3.15.4"
   },
   "devDependencies": {
     "firebase-functions-test": "0.3.2"