fix tests

Author: mghantous

.github/workflows/tests.yml

@@ -22,6 +22,8 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
+        # requirements.txt omits setuptools (pip-compile); setuptools<82 needed for pkg_resources (devpi-server)
+        python -m pip install 'setuptools<82'
         python -m pip install -r requirements.txt
         python -m pip install --no-deps -e .
         if [ "${{ matrix.python-version }}" != "3.13" ]; then  # workaround for TheKevJames/coveralls-python#523