Update changelog

Author: aldas

CHANGELOG.md

@@ -1,5 +1,15 @@
 # Changelog
 
+## v4.2.0 - 2023-01-26
+
+**Breaking change:** [JWT](github.com/golang-jwt/jwt) has been upgraded to `v5`. Check/test all your code involved with JWT tokens/claims. Search for `github.com/golang-jwt/jwt/v4` 
+and replace it with `github.com/golang-jwt/jwt/v5`
+
+**Enhancements**
+
+* Upgrade `golang-jwt/jwt` library to `v5` [#9](https://github.com/labstack/echo-jwt/pull/9)
+
+
 ## v4.1.0 - 2023-01-26
 
 **Enhancements**