another attempt at building macos wheels

Author: mathias-von-ottenbreit

.github/workflows/build_wheels_macos.yml

@@ -8,15 +8,15 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [macos-10.15]
+        os: [macos-latest]
 
     steps:
       - uses: actions/checkout@v2
 
       - name: Build wheels
         uses: pypa/[email protected]
         env:
-          MACOSX_DEPLOYMENT_TARGET: "10.15"
+          MACOSX_DEPLOYMENT_TARGET: "10.14"
 
       - uses: actions/upload-artifact@v2
         with: