Update .gitlab-ci.yml

1 job for adi-dev in 1 minute and 28 seconds (queued for 1 second)
Name Stage Failure
failed
TestJobLinux Linux
-- Detecting CXX compile features - done
CMake Error at CMakeLists.txt:4 (add_subdirectory):
add_subdirectory given source "target" which is not an existing directory.


-- Configuring incomplete, errors occurred!
See also "/builds/monticore/EmbeddedMontiArc/applications/balltracking/build/CMakeFiles/CMakeOutput.log".
Cleaning up file based variables
ERROR: Job failed: exit code 1