fix(deps): update dependency @google-cloud/projectify to v4 (#2264)

Author: renovate-bot

package.json

@@ -51,7 +51,7 @@
   },
   "dependencies": {
     "@google-cloud/paginator": "^5.0.0",
-    "@google-cloud/projectify": "^3.0.0",
+    "@google-cloud/projectify": "^4.0.0",
     "@google-cloud/promisify": "^3.0.0",
     "abort-controller": "^3.0.0",
     "async-retry": "^1.3.3",