chore: Upgrade pubsub (#35354)

Co-authored-by: MarconLP <13001502+MarconLP@users.noreply.github.com>
Co-authored-by: Ben White <ben@posthog.com>

plugin-server/package.json

@@ -48,7 +48,7 @@
         "@babel/preset-env": "^7.22.10",
         "@babel/preset-typescript": "^7.18.6",
         "@babel/standalone": "^7.23.2",
-        "@google-cloud/pubsub": "3.0.1",
+        "@google-cloud/pubsub": "4.11.0",
         "@google-cloud/storage": "^5.8.5",
         "@maxmind/geoip2-node": "^3.4.0",
         "@posthog/clickhouse": "^1.7.0",