Merge pull request #54 from RustAudio/dependabot/cargo/bindgen-0.59

Update bindgen requirement from 0.56 to 0.59

Author: simlay

Cargo.toml

@@ -11,7 +11,7 @@ repository = "https://github.com/RustAudio/coreaudio-sys.git"
 build = "build.rs"
 
 [build-dependencies.bindgen]
-version = "0.56"
+version = "0.59"
 default-features = false
 features = ["runtime"]