release 0.22

Author: burrbull

Cargo.toml

@@ -11,7 +11,7 @@ license = "0BSD"
 name = "stm32f4xx-hal"
 readme = "README.md"
 repository = "https://github.com/stm32-rs/stm32f4xx-hal"
-version = "0.21.0"
+version = "0.22.0"
 
 [package.metadata.docs.rs]
 features = [