Update Pybind11 configuration in CMakeLists.txt

Adjusted the CMAKE_PREFIX_PATH to include parent directory of Pybind11 installation for correct directory resolution. Changed the find_package command to use the CONFIG mode, ensuring proper configuration file lookup.

CMakeLists.txt

@@ -234,7 +234,7 @@ if(NOT DEFINED pybind11_ROOT)
     if (_python_pybind11_dir_found EQUAL 0)
         message(STATUS "Adding Pybind11 cmake dir ${_python_pybind11_dir}")
         set(pybind11_ROOT "${_python_pybind11_dir}" CACHE INTERNAL "")
-        list(APPEND CMAKE_PREFIX_PATH "${_python_pybind11_dir}")
+        list(APPEND CMAKE_PREFIX_PATH "${_python_pybind11_dir}/..")
     else()
         message(FATAL_ERROR "Could not add pybind11 dir: ${_python_pybind11_dir_found} && ${_python_pybind11_dir}")
     endif ()
@@ -385,7 +385,7 @@ endif ()
 #            INTERFACE_COMPILE_OPTIONS "${_omp_flags}")
 #endif()
 
-find_package(pybind11 REQUIRED)
+find_package(pybind11 CONFIG REQUIRED)
 find_package(cereal REQUIRED)
 find_package(PCGRandom REQUIRED)
 #find_package(Libalgebra_lite REQUIRED)