Merge pull request #83 from w3f/bump-ark-scale

Bump ark-scale version

Author: davxy

Cargo.toml

@@ -30,4 +30,4 @@ ark-ff = { version = "0.4", default-features = false }
 ark-ec = { version = "0.4", default-features = false }
 ark-serialize = { version = "0.4", default-features = false, features = [ "derive" ] }
 # ark-serialize-derive = { version = "0.4", default-features = false }
-ark-scale = { version = "0.0.11", default-features = false, features = ["ec"] }
+ark-scale = { version = "0.0.12", default-features = false, features = ["ec"] }