Qt 5.15.3 version bump with binary path changes - 30/03/2022 00:00 GMT

Up until Qt 5.15.2 we were using qtchooser to provide unversioned links to Qt
binaries in PATH, like qmake, moc, qmljs etc. Starting with 5.15.3 [1] such
links will be installed by each respective Qt package and '5'-version-suffixed,
e.g. qmake becomes qmake5, qml becomes qml5 etc., mirroring Qt6.

If you develop with Qt5 and rely on unversioned binaries for your workflow,
dev-qt/qtchooser as a tool for quickly switching between multiple Qt
installations (e.g. Qt3, Qt4 and Qt5) can still be manually installed. The
'default' Qt version in PATH is then controlled via config in
/etc/xdg/qtchooser.

Otherwise, dev-qt/qtchooser will be slated for cleanup on your next
emerge --depclean run.

[1] https://archives.gentoo.org/gentoo-dev/message/
5f3681b5b28dabeb5339d44e9585d29f