bump version of bigdecimal

Author: haraldmaida

Cargo.toml

@@ -29,7 +29,7 @@ bigint = ["num-bigint", "num-traits"]
 serde1 = ["serde", "bigdecimal/serde", "chrono/serde", "num-bigint/serde"]
 
 [dependencies]
-bigdecimal = { version = "0.1", optional = true }
+bigdecimal = { version = "0.2", optional = true }
 chrono = { version = "0.4", optional = true }
 num-bigint = { version = "0.3", optional = true }
 num-traits = { version = "0.2", optional = true }