Fix CMP0148 warning in CMakeLists.txt

[asas1asas200]

The purpose of this PR is to address the CMake warning, which is as follows:

CMake Warning (dev) at CMakeLists.txt:20 (find_package):
  Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
  are removed.  Run "cmake --help-policy CMP0148" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.

This warning is for project developers.  Use -Wno-dev to suppress it.

CMP0148 will remove FindPythonInterp and FindPythonLibs modules.
Projects using modules above should be updated to use one of their replacements:

• FindPython3
• FindPython2
• FindPython
  This policy was introduced in CMake version 3.27.

SEE: CMP0148

[zrax]

It looks like you also need to change ${PYTHON_EXECUTABLE} to ${Python_EXECUTABLE} on line 41 (CMake variables are case sensitive, and the new Find module uses a different output variable)

[zrax]

Thanks!