build: update version to 0.4.0

Author: dariocurr

Cargo.toml

@@ -17,7 +17,7 @@
 
 [package]
 name = "datafusion-functions-extra"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2024"
 description = "Extra Functions for DataFusion"
 readme = "README.md"