docs: 6.3.0 release

Author: DannyvdSluijs

CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [6.3.0] - 2025-03-14
 ### Fixed
 - only check minProperties or maxProperties on objects ([#802](https://github.com/jsonrainbow/json-schema/pull/802))
 - replace filter_var for uri and uri-reference to userland code to be RFC 3986 compliant ([#800](https://github.com/jsonrainbow/json-schema/pull/800))