lxqt-about: update 0.11.1 -> 0.12.0
lxqt-about: update 0.11.1 -> 0.12.0

Signed-off-by: Andreas Müller <d72a15aaaca3a7afa855175c72dc8d2e05931e32@gmail.com>

schnitzeltony/meta-qt5-extra,schnitzeltony/meta-qt5-extra,schnitzeltony/meta-qt5-extra