add python3.13 to github actions

Author: mahmoud

.github/workflows/tests.yaml

@@ -18,15 +18,21 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - { name: Linux, python: "3.12", os: ubuntu-latest, tox: py312 }
-          - { name: Windows, python: "3.12", os: windows-latest, tox: py312 }
-          - { name: Mac, python: "3.12", os: macos-latest, tox: py312 }
+          - { name: Linux, python: "3.13", os: ubuntu-latest, tox: py313 }
+          - { name: Windows, python: "3.13", os: windows-latest, tox: py313 }
+          - { name: Mac, python: "3.13", os: macos-latest, tox: py313 }
+          - { name: "3.12", python: "3.12", os: ubuntu-latest, tox: py312 }
           - { name: "3.11", python: "3.11", os: ubuntu-latest, tox: py311 }
           - { name: "3.10", python: "3.10", os: ubuntu-latest, tox: py310 }
           - { name: "3.9", python: "3.9", os: ubuntu-latest, tox: py39 }
           - { name: "3.8", python: "3.8", os: ubuntu-latest, tox: py38 }
           - { name: "3.7", python: "3.7", os: ubuntu-latest, tox: py37 }
-          - { name: "PyPy3", python: "pypy-3.9", os: ubuntu-latest, tox: pypy3 }
+          - {
+              name: "PyPy3",
+              python: "pypy-3.11",
+              os: ubuntu-latest,
+              tox: pypy3,
+            }
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v4