build: use macos-13 for older python versions

Author: mbdevpl

.github/workflows/python.yml

@@ -11,19 +11,21 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest]
         python-version: ['3.8', 'pypy3.8', '3.9', 'pypy3.9', '3.10', '3.11']
-        exclude:
-          - os: macos-latest
+        include:
+          - os: macos-13
             python-version: '3.8'
-          - os: macos-latest
+          - os: macos-13
             python-version: 'pypy3.8'
-          - os: macos-latest
+          - os: macos-13
             python-version: '3.9'
-          - os: macos-latest
+          - os: macos-13
             python-version: 'pypy3.9'
-          - os: macos-latest
+          - os: macos-13
             python-version: '3.10'
+          - os: macos-latest
+            python-version: '3.11'
 
     steps:
       - uses: actions/checkout@v4