update macos os label

Author: vvolkl

.github/workflows/macos.yml

@@ -10,7 +10,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, macos-12]
+        os: [macos-latest, macos-13]
     steps:
     - uses: actions/checkout@v4
     - uses: ./