Set macos 13

Author: honnibal

.github/workflows/tests.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-13]
         python_version: ["3.10", "3.11", "3.12"]
     runs-on: ${{ matrix.os }}