chore: bump version

Author: lvjonok

pyproject.toml

@@ -1,7 +1,7 @@
 [project]
 name = "jaxadi"
 description = "**JaxADi** is a powerful Python library designed to bridge the gap between `casadi.Function` and JAX-compatible functions."
-version = "0.3.0"
+version = "0.4.0"
 authors = [
     { name = "Lev Kozlov", email = "[email protected]" },
     { name = "Igor Alentev", email = "[email protected]" },