Update test configuration

Author: tuliotoffolo

Diff for: .github/workflows/github-ci.yml

@@ -40,7 +40,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "pypy3.9-v7.3.15"]
-        os: [macos-11, macos-12, ubuntu-20.04, ubuntu-22.04, windows-2019, windows-2022]
+        os: [macos-13, macos-14, macos-15, ubuntu-20.04, ubuntu-22.04, windows-2019, windows-2022]
         exclude:
           # temporarily exclude pypy3 on mac-os as there failing tests caused by bug on cbc side
           - os: macos-11