Merge pull request #580 from grahamgower/ci-is-always-breaking

Fix dev-deps github workflow job

Author: grahamgower

.github/workflows/dev.yaml

@@ -28,6 +28,6 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: install developer dependencies
-        run:
+        run: |
           pip install --upgrade pip
           pip install -r requirements.txt