Test conformance_tooling_test in GitHub release workflow. (#768)
Test conformance_tooling_test in GitHub release workflow. (#768)

conformance_tooling_test needs numpy to run.
libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl