Qt Android Automotive 6.4.2 released

- Qt Android Automotive 6.4.2 has been released:
https://www.qt.io/blog/qt-for-android-automotive-6.4.2-is-released

- Qt for MCUs 2.3.1 has been released:
https://www.qt.io/blog/qt-for-mcus-2.3.1-released