Unbounded cache enabled in production

**🐞 Describe the bug**

Apollo server seems to be using an unbounded cache with no way of configuring to be bounded.

Getting the following warning when starting production:
> Persisted queries are enabled and are using an unbounded cache. Your server is vulnerable to denial of service attacks via memory exhaustion. Set `cache: "bounded"` or `persistedQueries: false` in your ApolloServer constructor, or see https://go.apollo.dev/s/cache-backends for other alternatives.

**📚 To Reproduce**

Start Ackee with NODE_ENV=production should be enough.
Configuration mentioned in the [systemd docs](https://docs.ackee.electerious.com/#/docs/Systemd) also produces this warning.

**💡 Expected behavior**

To not be vulnerable to denial of service attacks by default.

**⚙️ Environment**
- Installation: Manually / Standalone
- Ackee version: v3.4.2