Change unity2 dependency to 0.2.1

Author: Raytwo

Cargo.toml

@@ -10,7 +10,7 @@ include = ["src/**/*", "docs/**/*", "Cargo.toml", "README*", "LICENSE*", "CHANGE
 [dependencies]
 skyline = "0.6"
 lazysimd = { git = "https://github.com/Raytwo/lazysimd" }
-unity2 = { git = "https://github.com/DivineDragonFanClub/unity2", tag = "0.2.0" }
+unity2 = { git = "https://github.com/DivineDragonFanClub/unity2", tag = "0.2.1" }
 
 [features]
 default = []