Bump version to 0.2.1

Author: iawia002

Cargo.lock

@@ -7,7 +7,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.2.0"
+version = "0.2.1"
 authors = ["Xinzhao Xu"]
 edition = "2021"
 categories = ["wasm"]
@@ -16,7 +16,7 @@ repository = "https://github.com/iawia002/wacker"
 license = "Apache-2.0"
 
 [workspace.dependencies]
-wacker = { path = "wacker", version = "0.2.0" }
+wacker = { path = "wacker", version = "0.2.1" }
 
 anyhow = "1.0.75"
 clap = { version = "4.4.11", features = ["derive"] }