Fix update_glslang_sources.py to not use distutils

The distutils package was removed in Python 3.12, however its only
usage in this script can easily be replaced with functionality available
in the builtin os package in Python 3.2 and later.

Fixes #3393

update_glslang_sources.py

@@ -17,12 +17,9 @@
 """Get source files for Glslang and its dependencies from public repositories.
 """
 
-from __future__ import print_function
-
 import argparse
 import json
-import distutils.dir_util
-import os.path
+import os
 import subprocess
 import sys
 
@@ -106,7 +103,7 @@ def HasCommit(self):
                                     cwd=self.subdir)
 
     def Clone(self):
-        distutils.dir_util.mkpath(self.subdir)
+        os.makedirs(self.subdir, exist_ok=True)
         command_output(['git', 'clone', self.GetUrl(), '.'], self.subdir)
 
     def Fetch(self):
@@ -139,7 +136,7 @@ def main():
 
     commits = GetGoodCommits(args.site)
 
-    distutils.dir_util.mkpath(args.dir)
+    os.makedirs(args.dir, exist_ok=True)
     print('Change directory to {d}'.format(d=args.dir))
     os.chdir(args.dir)