Update libqt5-qtwebengine to version 5.15.9 / rev 80 via SR 974366
https://build.opensuse.org/request/show/974366
by user Vogtinator + dimstar_suse
- Remove dependency on binutils-gold as the package will be removed
in the future. Gold linker is unmaintained by the upstream project. (forwarded request 974346 from marxin)