Use "macOS-latest" on "Github Actions".

KelSolaar · KelSolaar · commit 33b987739f6d · 2019-11-09T13:22:36.000+13:00
diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
@@ -7,7 +7,7 @@ jobs:
     name: Unix Build
     strategy:
       matrix:
-        os: [ubuntu-18.04, macOS-10.14]
+        os: [ubuntu-18.04, macOS-latest]
         python-version: [3.6, 3.7]
     runs-on: ${{ matrix.os }}
     steps:
