Add setuptools from build workflow

.github/workflows/build.yml

@@ -22,6 +22,8 @@ jobs:
           python-version: ${{ inputs.python_version }}
       - name: Install test requirements
         run: pip install -r requirements.txt
+      - name: Install setuptools
+        run: pip install setuptools
       - name: Install the package
         run: python setup.py develop
       - name: Run Tests