Prepare for release 1.3.0

Author: gotthardp

docs/CHANGELOG.md

@@ -3,7 +3,7 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 
-## [1.3.0-rc0] - 2025-01-08
+## [1.3.0] - 2025-01-25
 ### Added
 - Added support for RSA-OAEP decryption.
 - Added 'xof' and 'algid-absent' parameters to digests.