chore: fix CI to use macos-13

Author: Bilb

.github/workflows/test.yml

@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [windows-2022, macos-12, ubuntu-20.04]
+        os: [windows-2022, macos-13, ubuntu-20.04]
     env:
       SIGNAL_ENV: production
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}