update async deps

Author: Keruspe

Cargo.toml

@@ -20,15 +20,15 @@ tokio02 = ["tokio02-crate"]
 tokio03 = ["tokio03-crate"]
 
 [dependencies]
-async-channel = "^2.1"
-async-executor = "^1.7"
-async-lock = "^3.1"
+async-channel = "^2.1.1"
+async-executor = "^1.8"
+async-lock = "^3.2"
 blocking = "^1.5"
 futures-lite = "^2.0"
 once_cell = "^1.4"
 
 [dependencies.async-io]
-version = "^2.0"
+version = "^2.2.1"
 optional = true
 
 [dependencies.tokio-crate]