bundle install fails on gpgme when qttest is not installed

During the gitlabhq upgrade from 9.5.2 to 9.5.4 the bundle install step failed. It tried to compile the gem gpgme-2.0.13 test code that requires the include QTest that is provided by dev-qt/qttest.

It would be nice that this dependency can be removed, maybe by adding some bundle config options for this gem. Or maybe better in the gpgme gem (web side doesn't indicate a dependency with QTest)

Alternative is to add depend on dev-qt/qttest (I hope it doesn't pull in the whole QT, I had already QT5 installed for another application)

After installing qttest gitlabhq-9.5.4 installed