Bump ethabi and ethereum-types (#697)

* Bump version.

* Bump ethabi & ethereum-types

Author: tomusdrw

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "web3"
-version = "0.19.1"
+version = "0.19.0"
 description = "Ethereum JSON-RPC client."
 homepage = "https://github.com/tomusdrw/rust-web3"
 repository = "https://github.com/tomusdrw/rust-web3"
@@ -14,8 +14,8 @@ edition = "2018"
 [dependencies]
 arrayvec = "0.7.1"
 derive_more = "0.99.1"
-ethabi = "17.0.0"
-ethereum-types = "0.13.0"
+ethabi = "18.0.0"
+ethereum-types = "0.14.1"
 futures = "0.3.5"
 futures-timer = "3.0.2"
 hex = "0.4"