Add example with async_graphql

[IgnisDa]

It would be really helpful if an example with async graphql was present. I am using axum and async graphql and I can not access the storage in the gql_ctx. I can not figure out how to push a new job.

[geofmureithi]

You should be able to use .data
https://github.com/async-graphql/examples/blob/7eee23ad4e005ac180df8111e6940cebb7c1f52f/axum/starwars/src/main.rs#L25