cpython: provide libuuid for the _uuid module (#377458)

* util-linuxMinimal: build without pam and shadow

These depend on python via audit preventing the use of libuuid from
util-linux in python builds.

* cpython: provide libuuid for the _uuid module

Relying on libuuid offers synchronization primitives, so that "no two
processes can obtain the same UUID"¹.

[1] https://docs.python.org/3/library/uuid.html#module-uuid

pkgs/development/interpreters/python/default.nix

@@ -117,6 +117,7 @@ in {
     gdbm = null;
     sqlite = null;
     tzdata = null;
+    libuuid = null;
     libffi = libffiBoot; # without test suite
     stripConfig = true;
     stripIdlelib = true;