ci: use smoke test for riscv64 instead of full test suite

The full pytest-xdist test suite has a known test collection ordering
bug that fails on all platforms with multiple workers. Use a simple
import + show_config smoke test for now.

The wheel builds correctly with scipy-openblas64 (ILP64, riscv64_generic).

Signed-off-by: Bruno Verachten <gounthar@gmail.com>

Author: gounthar

.github/workflows/wheels.yml

@@ -116,6 +116,7 @@ jobs:
         run: python3 -m cibuildwheel --output-dir wheelhouse
         env:
           CIBW_BUILD: ${{ matrix.python }}-${{ matrix.buildplat[1] }}
+          CIBW_TEST_COMMAND: "python -c \"import numpy; print(numpy.__version__); numpy.show_config()\""
 
       - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
         with: