chore: bump version (#13)

Author: khvn26

Cargo.toml

@@ -1,20 +1,20 @@
 [package]
 name = "flagsmith-flag-engine"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Gagan Trivedi <gagan.trivedi@flagsmith.com>"]
 edition = "2021"
-description= "This project is the rust clone of flagsmith flag engine: https://github.com/Flagsmith/flagsmith-engine"
+description = "This project is the rust clone of flagsmith flag engine: https://github.com/Flagsmith/flagsmith-engine"
 readme = "README.md"
 license = "BSD-3-Clause"
 keywords = ["Flagsmith", "feature-flag", "remote-config", "flag-engine"]
 categories = ["config", "api-bindings"]
-maintenance = { status = "actively-developed"}
+maintenance = { status = "actively-developed" }
 
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 chrono = { version = "0.4", features = ["serde"] }
-md-5="0.10.1"
+md-5 = "0.10.1"
 num-bigint = "0.4"
 num-traits = "0.2.14"
 uuid = { version = "0.8", features = ["serde", "v4"] }