Qt 6.2.11 and Qt 6.5.4 now available to open source users

- Qt 6.2.11 has been released to the open source community:
https://lists.qt-project.org/pipermail/development/2025-January/046054.html

- Qt 6.5.4 has been released to the open source community:
https://lists.qt-project.org/pipermail/development/2025-January/046023.html

- The 2024 Qt Champions have been selected:
https://www.qt.io/blog/lets-welcome-our-2024-qt-champions

- Qt Graphs has moved out of tech preview and will ship in Qt 6.9.
https://www.qt.io/blog/whats-new-in-qtgraphs-6.9