gh-110109: Fix installed buildbots now `pathlib` is a package (#112901)
diff --git a/Makefile.pre.in b/Makefile.pre.in index 6ca11f0..42a7545 100644 --- a/Makefile.pre.in +++ b/Makefile.pre.in
@@ -2164,6 +2164,7 @@ json \ logging \ multiprocessing multiprocessing/dummy \ + pathlib \ pydoc_data \ re \ site-packages \