prevent celery tests hanging by installing setuptools

Author: graingert-coef

.circleci/config.yml

@@ -49,7 +49,7 @@ jobs:
           name: 🏁 Build Component Packages & Update Dependencies/Artifacts
           command: |
             python -m venv venv && . venv/bin/activate
-            pip install --upgrade pip wheel
+            pip install --upgrade pip wheel setuptools
             set -eo pipefail
             pip install -e .[ci,dev,testing,celery,diskcache] --progress-bar off
             pip list | grep dash