just ubuntu

Author: davidteather

.github/workflows/package-test.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-latest]
+        os: [ubuntu-latest]
         python-version: [3.6, 3.7, 3.8, 3.9]
     steps:
       - uses: actions/checkout@v2