tools/ci-build.sh: Add a ci_cmake_junit_output argument
CMake 3.21 can emit JUnit XML test results which can be visualized by GitLab. This change also installs a newer version of CMake on OpenSUSE Leap to ensure the visualization works.
CMake 3.21 can emit JUnit XML test results which can be visualized by GitLab. This change also installs a newer version of CMake on OpenSUSE Leap to ensure the visualization works.