QMake build fails

The QMake builds are failing in the CI:

agent:2023/02/28 11:55:43 build.go:403: cd indicators/ && ( test -e Makefile || /Users/qt/work/install/bin/qmake -o Makefile /Users/qt/work/tqtc-boot2qt/qtsaferenderer/examples/saferenderer/indicators/indicators.pro ) && /Applications/Xcode14.app/Contents/Developer/usr/bin/make -f Makefile agent:2023/02/28 11:55:44 build.go:403: Project ERROR: Unknown module(s) in QT: qtsaferenderer agent:2023/02/28 11:55:44 build.go:403: make[1]: *** [sub-indicators-make_first-ordered] Error 3 agent:2023/02/28 11:55:44 build.go:403: make: *** [sub-saferenderer-make_first] Error 2 agent:2023/02/28 11:55:44 build.go:454: Process finished with error: exit status 2

The root cause is .prf files are not exported to the mkspec folder when safe renderer is build with CMake.