fix(deps): update dependency gcp-metadata to v5 (#1068)

Author: renovate-bot

package.json

@@ -51,7 +51,7 @@
     "extend": "^3.0.2",
     "findit2": "^2.2.3",
     "firebase-admin": "^9.11.1",
-    "gcp-metadata": "^4.0.0",
+    "gcp-metadata": "^5.0.0",
     "p-limit": "^3.0.1",
     "semver": "^7.0.0",
     "source-map": "^0.8.0-beta.0",