Use macos-13.

Author: termim

.github/workflows/test_macos.yml

@@ -32,7 +32,7 @@ jobs:
     strategy:
       matrix:
             python-version: ['3.9', '3.10', '3.11', '3.12']
-            os: [macos-latest]
+            os: [macos-13]
 
     steps: