Update Expected Safe4337Module Address

[nlordell]

The Safe4337Module address already changed from #322 and can change post audit #272. This issue is a reminder to update the expected address of the module once the audit completes and all requested changes are implemented.

[remedcu]

Whoever is going to work on this, this also results in changes to .env.example

[remedcu]

Once deployed, need to update it here as well: https://github.com/safe-global/safe-modules-deployments/tree/main/src/assets/safe-4337-module/