CI: Upgrade setuptools, limit installs to test extra

Author: effigies

.github/workflows/pythonpackage.yml

@@ -26,8 +26,8 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
-        pip install .[dev]
+        python -m pip install --upgrade pip setuptools
+        pip install .[test]
     - name: Test with pytest
       run: |
         pytest pydra_ml/tests/test_classifier.py