Pin types-setuptools to <67.4.0.2 (#14788)

The mypyc build is failing on `master` due to the latest release of
`types-setuptools`: see, e.g.
https://github.com/python/mypy/actions/runs/4275505309/jobs/7442902732.

#14787 fixes the mypyc _build_, but there's still a bunch of mypyc tests
failing on that PR. I haven't got time to debug them right now (and I'm
also not particularly knowledgeable about mypyc!), so this is a stopgap
PR to pin `types-setuptools` so that we avoid the latest release.

Author: AlexWaygood

build-requirements.txt

@@ -1,5 +1,6 @@
 # NOTE: this needs to be kept in sync with the "requires" list in pyproject.toml
 -r mypy-requirements.txt
 types-psutil
-types-setuptools
+# TODO: fix build when using the latest version of types-setuptools
+types-setuptools<67.4.0.2
 types-typed-ast>=1.5.8,<1.6.0

pyproject.toml

@@ -12,7 +12,7 @@ requires = [
     "tomli>=1.1.0; python_version<'3.11'",
     # the following is from build-requirements.txt
     "types-psutil",
-    "types-setuptools",
+    "types-setuptools<67.4.0.2",  # TODO: fix build when using the latest version of types-setuptools
     "types-typed-ast>=1.5.8,<1.6.0",
 ]
 build-backend = "setuptools.build_meta"