fix(deps): update rust crate juniper to 0.16.0

Author: renovate[bot]

juniper/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-juniper = "0.15.9"
+juniper = "0.16.0"
 juniper_actix = "0.4.0"
 actix-web = { version = "4.1.0", features = ["macros"] }
 env_logger = "0.11.3"