chore(lib): update tokio-util to 0.7 (#2762)

Author: nylonicious

Cargo.toml

@@ -61,7 +61,7 @@ tokio = { version = "1", features = [
     "test-util",
 ] }
 tokio-test = "0.4"
-tokio-util = { version = "0.6", features = ["codec"] }
+tokio-util = { version = "0.7", features = ["codec"] }
 tower = { version = "0.4", features = ["make", "util"] }
 url = "2.2"