use 12

Author: jburel

.github/workflows/workflow.yml

@@ -24,7 +24,7 @@ jobs:
           - windows-2019
         include:
           - python-version: '3.8'
-            os: macos-latest
+            os: macos-12
     runs-on: ${{ matrix.os }}
     steps:
       - name: Get tox target