- Update to version 5.15.2+kde222:
* Revert "QString::lastIndexOf: fix off-by-one for zero length matches"
* MySQL: treat the MYSQL_FIELD as read-only
* Remove checks for glibc < 2 from qplatformdefs.h files
* linux-clang/qplatformdefs: fix building with musl libc
* Refix for avoiding huge number of tiny dashes
* Improve fix for avoiding huge number of tiny dashes
* Avoid processing-intensive painting of high number of tiny dashes
* xcb: add a timeout control when reading INCR property
* Remove another usage of mysql_get_client_version()
* MySQL: remove the version number checks in favor of actual functionality
* QLibraryInfo: Add MSVC 2022
* doCrypt() - check the error codes
* Restore C++11 compatibility of QSharedPointer code
* opengl: fix a typo in QOpenGLPaintDevice::dotsPerMeterY()
* Fix rvalue overload of qobject_pointer_cast for GCC 9.3
* QVarLengthArray: fix aliasing error in insert(it, n, v)
* Fix memory leak of QOffscreenScreen in QOffscreenIntegration
* Fix tst_moc for C++17
* Add missing limits include
* xcb: Avoid use-after-free in QXcbConnection::initializeScreens()
* xcb: Remove need for QXCBScreen to resolve QXcbGlIntegration
* Update shared-mime-info to the 2.1 release, adjust implementation