Only check wheels on linux

Author: rhpvorderman

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
       matrix:
         python-version:
           - 3.6
-        os: [ "macos-latest", "ubuntu-latest" ]
+        os: ["ubuntu-latest" ]
     steps:
       - uses: actions/[email protected]
         with: