fix(deps): update rust crate async-graphql to v7

Author: renovate[bot]

async-graphql/Cargo.toml

@@ -6,6 +6,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-async-graphql = "5.0"
+async-graphql = "7.0"
 async-graphql-actix-web = "5.0"
 actix-web = { version = "4.4", features = ["macros"] }