update

Author: jswhit

.github/workflows/build-wheels.yml

@@ -29,7 +29,7 @@ jobs:
 #       platform: [x64, x32]
 # test on a single platform, python version
         python-version: ["3.8"]
-        os: [macos-latest]
+        os: [ubuntu-latest, macos-latest]
         platform: [x64]
         MB_ML_VER: [2014]
         exclude: