Enabled CMake warnings in GitHub Workflows (#23)

In Github Workflows scripts 'BOOST_ROOT' CMake define changed toto
'Boost_ROOT' to get rid of the 'CMP0144' policy warning.

.github/workflows/cmake.yml

@@ -127,13 +127,13 @@ jobs:
  # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
  # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
  run: |
- cmake \
+ cmake -Wdev -Werror=dev -Wdeprecated -Werror=deprecated \
  -B ${{github.workspace}}/../build-${{matrix.config.label}} \
  -DCMAKE_BUILD_TYPE=${{matrix.config.build_type}} \
  -DCMAKE_C_COMPILER=${{matrix.config.cc}} \
  -DCMAKE_CXX_COMPILER=${{matrix.config.cxx}} \
  ${{matrix.config.libcxx_cmake_flags}} \
- -DBOOST_ROOT=${{runner.temp}}/deps/${{format('boost_{0}_{1}_{2}', env.BOOST_MAJOR, env.BOOST_MINOR, env.BOOST_PATCH)}} \
+ -DBoost_ROOT=${{runner.temp}}/deps/${{format('boost_{0}_{1}_{2}', env.BOOST_MAJOR, env.BOOST_MINOR, env.BOOST_PATCH)}} \
  -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
 
  - name: CMake info