CI: add Python 3.12

Signed-off-by: Sam James <sam@gentoo.org>
Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>

Author: thesamesam

.github/workflows/test.yml

@@ -16,9 +16,9 @@ jobs:
         python-version: ['3.10', '3.11']
         experimental: [false]
         include:
-          # - os: ubuntu-latest
-          #   python-version: '3.11.0-beta - 3.11'
-          #   experimental: true
+          - os: ubuntu-latest
+            python-version: '3.12-dev'
+            experimental: true
           - os: macos-latest
             python-version: '3.11'
             experimental: false