add tests for python 3.12

Author: coder2020official

.github/workflows/setup_python.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ '3.8', '3.9', '3.10', '3.11', 'pypy-3.8', 'pypy-3.9', 'pypy-3.10']
+        python-version: [ '3.8', '3.9', '3.10', '3.11', '3.12', 'pypy-3.8', 'pypy-3.9', 'pypy-3.10']
     name: ${{ matrix.python-version }} and tests
     steps:
       - uses: actions/checkout@v2