Security advisory issued regarding QtSVG

- The Qt Company has issued a security advisory regarding QtSVG:
https://www.qt.io/blog/security-advisory-qt-svg

- Qt Design Studio 4.1 has been released:
https://www.qt.io/blog/qt-design-studio-4.1-released

- Qt 6.5.1 is coming soon. Current plan is to release on May 24, 2023.