Revert "fix: update Python package configuration in CMakeLists.txt"

This reverts commit 2987d68.

Author: fbriol

CMakeLists.txt

@@ -263,10 +263,26 @@ endif()
 
 # Python
 find_package(
-  Python
+  Python3
   COMPONENTS Interpreter Development.Module
   REQUIRED)
-include_directories(SYSTEM PRIVATE ${Python_INCLUDE_DIRS})
+include_directories(SYSTEM PRIVATE ${Python3_INCLUDE_DIRS})
+
+# Ensure Python::Module target exists (needed for nanobind on Windows)
+if(NOT TARGET Python::Module)
+  if(NOT TARGET Python::Python)
+    add_library(Python::Python INTERFACE IMPORTED)
+    set_target_properties(
+      Python::Python
+      PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${Python3_INCLUDE_DIRS}"
+                 INTERFACE_LINK_LIBRARIES "${Python3_LIBRARIES}")
+  endif()
+  add_library(Python::Module INTERFACE IMPORTED)
+  # cmake-format: off
+  set_target_properties(
+    Python::Module PROPERTIES INTERFACE_LINK_LIBRARIES "Python::Python")
+  # cmake-format: on
+endif()
 
 # BLAS
 #