chore: release v1.21.1

Author: sigoden

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "argc"
-version = "1.21.0"
+version = "1.21.1"
 edition = "2021"
 authors = ["sigoden <sigoden@gmail.com>"]
 description = "A bash cli framework, also a bash-based command runner"
@@ -49,7 +49,7 @@ nom = "7.1"
 either = "1.8"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { version = "1.0", features = ["preserve_order"], optional = true }
-which = { version = "6.0", optional = true }
+which = { version = "7.0", optional = true }
 shell-words = "1.1"
 textwrap = { version = "0.16", optional = true }
 dirs = { version = "5.0", optional = true }