makepanda: Use new dist hooks location introduced by 1f41edd

Fixes #1624

makepanda/makepanda.py

@@ -3285,7 +3285,7 @@ build_apps = direct.dist.commands:build_apps
 bdist_apps = direct.dist.commands:bdist_apps
 
 [setuptools.finalize_distribution_options]
-build_apps = direct.dist.commands:finalize_distribution_options
+build_apps = direct.dist._dist_hooks:finalize_distribution_options
 """
 
 if not PkgSkip("DIRECT"):

makepanda/makewheel.py

@@ -768,7 +768,7 @@ __version__ = '{0}'
     entry_points += 'build_apps = direct.dist.commands:build_apps\n'
     entry_points += 'bdist_apps = direct.dist.commands:bdist_apps\n'
     entry_points += '[setuptools.finalize_distribution_options]\n'
-    entry_points += 'build_apps = direct.dist.commands:finalize_distribution_options\n'
+    entry_points += 'build_apps = direct.dist._dist_hooks:finalize_distribution_options\n'
 
     whl.write_file_data('panda3d_tools/__init__.py', PANDA3D_TOOLS_INIT.format(tools_init))