Make stubtest pass on libsass/passlib/redis/tree-sitter if you're using Python 3.12 (#11561)

stubs/libsass/METADATA.toml

@@ -1,3 +1,7 @@
 version = "0.23.*"
 requires = ["types-setuptools"]
 upstream_repository = "https://github.com/sass/libsass-python"
+
+[tool.stubtest]
+# The runtime package has an undeclared dependency on setuptools
+stubtest_requirements = ["setuptools"]