Merge topic 'test-no-git'

15d9d591bd Tests: Require git to enable RunCMake.CMP0150 test
0c2610bd30 Tests: Find GIT_EXECUTABLE early enough to use in all tests

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Merge-request: !8556