Make tests verbose when building wheels (#88)

Author: eriknw

.github/workflows/wheels.yml

@@ -148,12 +148,13 @@ jobs:
           CIBW_TEST_EXTRAS: "test"
 
           # run tests
-          CIBW_TEST_COMMAND: "pytest --pyargs suitesparse_graphblas"
+          CIBW_TEST_COMMAND: "pytest -v --pyargs suitesparse_graphblas"
 
           # GitHub Actions macOS Intel runner cannot run ARM tests. Uncomment to silence warning.
 #          CIBW_TEST_SKIP: "*-macosx_arm64"
 
         run: |
+          python -m pip install --upgrade pip
           python -m pip install cibuildwheel
           python -m cibuildwheel --output-dir wheelhouse .
         shell: bash