Take integration tests to the calculation of the runtime test coverage

Consider including the integration tests in the runtime test coverage.

There are some cases that are covered in the integration tests but not in the runtime tests.

For example the StateManager:

http://ci-files02-hki.intra.qt.io/packages/jenkins/qtsaferenderer/nightly/html/1.2/2021-02-20.00.01.01/QSR_nightly_Linux_Autotest_Multiple_Condition_Code_Coverage_200221_html/source_1.html#line644