[ci][R-package] Fix failures with R 3.6 and CMake (fixes #3469) (#3541)
[ci][R-package] Fix failures with R 3.6 and CMake (fixes #3469) (#3541)

* [R-package] Fix failures with R 3.6 and CMake

* min version
microsoft/LightGBM,microsoft/LightGBM,henry0312/LightGBM,henry0312/LightGBM,microsoft/LightGBM,microsoft/LightGBM,henry0312/LightGBM,microsoft/LightGBM,henry0312/LightGBM,henry0312/LightGBM