version bump

Author: cando

Cargo.toml

@@ -2,7 +2,7 @@
 name = "algar"
 authors = ["Stefano Candori <stefano.candori@prima.it>"]
 description = "Algebraic structures, higher-kinded types and other category theory bad ideas"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 license = "MIT"
 repository = "https://github.com/cando/Algar"