work around mypy bug

Author: kislyuk

Makefile

@@ -6,6 +6,7 @@ test_deps:
 lint:
 	for dir in $$(dirname */__init__.py); do ruff check $$dir; done
 	for script in scripts/*[^cmd]; do if grep -q python $$script; then ruff check $$script; fi; done
+	pip install types-setuptools
 	mypy --install-types --non-interactive argcomplete
 
 test: