fix(deps): use google-gax v3.5.2 (#332)

Author: alexander-fenster

packages/google-cloud-billing-budgets/package.json

@@ -47,6 +47,6 @@
     "node": ">=12.0.0"
   },
   "dependencies": {
-    "google-gax": "^3.3.0"
+    "google-gax": "^3.5.2"
   }
 }