qt5-qtwebkit-examples @5.9.1: Some of the required modules (qtHaveModule(webkit)) are not available

[ryandesign (Ryan Carsten Schmidt)]

Looks like qt5-qtwebkit-examples fails to build because it's missing a dependency:

Some of the required modules (qtHaveModule(webkit)) are not available.
Skipped.
make: Leaving directory `/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_aqua_qt5/qt5-qtwebkit-examples/work/qtwebkit-examples-opensource-src-5.9.1'
DEBUG: Executing proc-post-org.macports.destroot-destroot-0
xinstall: mkdir /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_aqua_qt5/qt5-qtwebkit-examples/work/destroot/Applications/MacPorts/Qt5
xinstall: mkdir /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_aqua_qt5/qt5-qtwebkit-examples/work/destroot/opt/local/lib/cmake
DEBUG: Executing portdestroot::destroot_finish
DEBUG: Fixing glibtool .la files in destroot for qt5-qtwebkit-examples
Error: No files have been installed in the destroot directory!
Error: Please make sure that this software supports 'make install DESTDIR=${destroot}' or implement an alternative destroot mechanism in the Portfile.
Error: Files might have been installed directly into your system, check before proceeding.
Error: Failed to destroot qt5-qtwebkit-examples: Staging qt5-qtwebkit-examples into destroot failed

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In bc66780ab38ed5f76bd1229ba99158b8443dcba9/macports-ports:

qt5-qtwebkit-examples: add missing dependency

Fixes #55094