Use get_platform() from sysconfig instead distutils.util

- distutils is dropped in python 3.10/3.12
- fixes #87

cue-test.py

@@ -8,7 +8,6 @@
 from __future__ import print_function
 
 import sys, os, shutil, fileinput
-import distutils.util
 import re
 import subprocess as sp
 import unittest

cue.py

@@ -12,7 +12,7 @@
 import threading
 from glob import glob
 import subprocess as sp
-import distutils.util
+import sysconfig
 
 logger = logging.getLogger(__name__)
 
@@ -314,7 +314,7 @@ def host_info():
     print('PYTHONPATH')
     for dname in sys.path:
         print(' ', dname)
-    print('platform =', distutils.util.get_platform())
+    print('platform =', sysconfig.get_platform())
 
     if ci['os'] == 'windows':
         print('{0}Available Visual Studio versions{1}'.format(ANSI_CYAN, ANSI_RESET))