CI: Build on Windows using GCC via MinGW (#15405)
CI: Build on Windows using GCC via MinGW (#15405)

Currently it is disabled, due to broken QtWebKit on MinGW/MSYS2
(see #15405 for details)

ariya/phantomjs,ariya/phantomjs,ariya/phantomjs,ariya/phantomjs,ariya/phantomjs,ariya/phantomjs