fix(deps): require setuptools<=60.5.0 (googleapis#1179)

* fix(deps): require setuptools<=60.5.0

* pin types-protobuf<=3.19.7 in mypy nox session

* move pin to correct session

Author: parthea

noxfile.py

@@ -443,6 +443,6 @@ def docs(session):
 def mypy(session):
     """Perform typecheck analysis."""
 
-    session.install("mypy", "types-protobuf", "types-PyYAML", "types-dataclasses")
+    session.install("mypy", "types-protobuf<=3.19.7", "types-PyYAML", "types-dataclasses")
     session.install(".")
     session.run("mypy", "gapic")

requirements.txt

@@ -7,3 +7,4 @@ protobuf==3.19.4
 pypandoc==1.7.2
 PyYAML==6.0
 dataclasses==0.6  # TODO(busunkim) remove when 3.6 support is dropped
+setuptools<=60.5.0 # pin setuptools to workaround https://github.com/pypa/setuptools/issues/3072