Update .gitlab-ci.yml

1 job for master in 44 seconds
Status Job ID Name Coverage
  Test
failed #619
build

00:00:44

 
Name Stage Failure
failed
build Test

Call Stack (most recent call first):
CMakeLists.txt:2 (project)


CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
-- Configuring incomplete, errors occurred!
See also "/builds/Google-TPU/BLAS-join/cmake/build/CMakeFiles/CMakeOutput.log".
ERROR: Job failed: exit code 1