Bump version to 6.13.0


Change-Id: I9ca525bbe6924ec9879cab24bad4f270f2f1c27b
Reviewed-by: Qt Submodule Update Bot <qt_submodule_update_bot@qt-project.org>
commit4fd5dae0ead963cc9b8881e57bbbb7ed17200cdf
parent345af9da34f8fc96aa6e41c59dda95afb5aee31f
authorJani Heikkinen <jani.heikkinen@qt.io>
committerJani Heikkinen <jani.heikkinen@qt.io>
commit timeFri, 5 Jun 2026 04:29:31 +0000