oops, python-graphblas didn't build for Python 3.12 on conda-forge

.github/workflows/test.yml

@@ -48,7 +48,12 @@ jobs:
           auto-activate-base: false
       - name: Install dependencies
         run: |
-          $(command -v mamba || command -v conda) install python-graphblas scipy pandas pytest-cov pytest-randomly pytest-mpl
+          $(command -v mamba || command -v conda) install python-suitesparse-graphblas scipy pandas pytest-cov pytest-randomly pytest-mpl \
+            ${{ matrix.python-version != '3.12' && 'python-graphblas' || '' }}
+          if [[ ${{ matrix.python-version }} == "3.12" ]]; then
+            # TODO: install via conda once there are builds for 3.12
+            pip install --no-deps python-graphblas
+          fi
             # matplotlib lxml pygraphviz pydot sympy  # Extra networkx deps we don't need yet
           pip install git+https://github.com/networkx/networkx.git@main --no-deps
           pip install -e . --no-deps