Update version for release

Author: jamesmunns

embedded-hal-bus/Cargo.toml

@@ -12,7 +12,7 @@ license = "MIT OR Apache-2.0"
 name = "embedded-hal-bus"
 readme = "README.md"
 repository = "https://github.com/rust-embedded/embedded-hal"
-version = "0.2.0"
+version = "0.3.0"
 
 [features]
 # Enable shared bus implementations using `std::sync::Mutex`