Fix Continuous Integration

The external flesnet requires at least CMake 3.14.0.
Check already in our CMakeLists.txt if this version is available, otherwise
the test is done when building flesnet and the error is hidden in some log
file.
Use CMake from the FairSoft installation on the CI runner (lxir116 )where the
CMake version is to old.

.gitlab-ci.yml

@@ -248,7 +248,7 @@ FileLicenceCheck:
     BASE_PATH: "/cvmfs/fairsoft.gsi.de/debian10"
     SIMPATH: "$BASE_PATH/fairsoft/$FAIRSOFT_VERSION"
     FAIRROOTPATH: "$BASE_PATH/fairroot/${FAIRROOT_VERSION}_fs_${FAIRSOFT_VERSION}"
-
+    EXTRA_PATH: "${SIMPATH}/bin"
 
 .macosx_tag: &macosx_tag
   stage: build

CMakeLists.txt

@@ -8,9 +8,9 @@
 
 # Check if cmake has the required version
 # For the CTest fixtures at least CMake 3.7.2 is needed.
-# Since NicaFempto requires 3.11.0 we should be consistent while we
+# Since flesnet requires 3.14.0 we should be consistent while we
 # build it in the CbmRoot context
-CMAKE_MINIMUM_REQUIRED(VERSION 3.11.0 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.14)
 
 # Set name of our project to "CBMROOT". Has to be done
 # after check of cmake version