update changelog

Author: vanhauser-thc

CHANGES

@@ -1,6 +1,18 @@
 Changelog for hydra
 -------------------
 
+Release 9.6
+* freerdp v2 -> v3
+* compile fixes (eg. gcc-15)
+* pop3 capability fix
+* mysql library upgrade
+* http-form fixes
+* postgres custom port support
+* smb better expired support
+* ssh legacy cipher support
+* http 403 support
+! Thanks for all the pull requests!
+
 Release 9.5
 * many modules did not support -W (all those that used a library for the
   connection). All (or most?) should be fixed now.