Trying to run tests on Python 3.12

Author: insolor

.github/workflows/python-tests.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: windows-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: [3.7, 3.8, 3.9, "3.10", "3.11", "3.12-dev"]
 
     steps:
     - uses: actions/checkout@v3