Add upper bounds to some libs, setuptools fails on Py 3.4

.buildkite/setup_and_upload_artifacts.sh

@@ -6,9 +6,12 @@ SCRIPTPATH=$(pwd)
 PIP="$SCRIPTPATH/env/bin/pip"
 PYTHON="$SCRIPTPATH/env/bin/python"
 
+pip freeze
+
 echo "Creating virtualenv..."
 virtualenv -p python3 env
 
+$PIP install setuptools\<44
 echo "Installing requirements..."
 $PIP install -r requirements_pipeline.txt
 

requirements_pipeline.txt

@@ -1,3 +1,8 @@
 requests<2.3
 github3.py>=0.9.6,<1.4
-gcloud
+gcloud<0.20
+
+googleapis-common-protos<1.52
+
+# 44 stops supporting Py 3.4
+setuptools<44