Correctly generate conda packages for packages that depend on vtk

[traversaro]

Fix #1276 .

[traversaro]

Test generate-conda-packages job: https://github.com/robotology/robotology-superbuild/actions/runs/3133974047 .

[traversaro]

Apparently now the job is failing due to:

2022-09-27T11:57:10.2663845Z CMake Error at /usr/share/miniconda/envs/test/conda-bld/find-superquadric_1664279402512/_build_env/share/cmake-3.24/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
2022-09-27T11:57:10.2665025Z   Could NOT find Boost: Found unsuitable version "1.74.0", but required is
2022-09-27T11:57:10.2665820Z   exact version "1.78.0" (found
2022-09-27T11:57:10.2666907Z   /usr/share/miniconda/envs/test/conda-bld/find-superquadric_1664279402512/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_place/include,
2022-09-27T11:57:10.2667637Z   )
2022-09-27T11:57:10.2667961Z Call Stack (most recent call first):
2022-09-27T11:57:10.2668810Z   /usr/share/miniconda/envs/test/conda-bld/find-superquadric_1664279402512/_build_env/share/cmake-3.24/Modules/FindPackageHandleStandardArgs.cmake:592 (_FPHSA_FAILURE_MESSAGE)
2022-09-27T11:57:10.2669798Z   /usr/share/miniconda/envs/test/conda-bld/find-superquadric_1664279402512/_build_env/share/cmake-3.24/Modules/FindBoost.cmake:2376 (find_package_handle_standard_args)
2022-09-27T11:57:10.2671170Z   /usr/share/miniconda/envs/test/conda-bld/find-superquadric_1664279402512/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_place/lib/cmake/vtk-9.1/VTK-vtk-module-find-packages.cmake:444 (find_package)
2022-09-27T11:57:10.2672705Z   /usr/share/miniconda/envs/test/conda-bld/find-superquadric_1664279402512/_h_env_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_placehold_place/lib/cmake/vtk-9.1/vtk-config.cmake:150 (include)
2022-09-27T11:57:10.2673454Z   CMakeLists.txt:28 (find_package)

Not sure what the correct solution upstream is, so for the time being I just pinned boost-cpp at the local pinning level: 1d82372 .

New job: https://github.com/robotology/robotology-superbuild/actions/runs/3135534937 .

[traversaro]

The Linux package are now correctly built. macOS and Windows are not built due to the max time spent, but this will be fixed by #1249 once blf is available in conda-forge .