👷 NEP29: Run Continuous Integration on Python 3.12 (#7)

Run Continuous Integration tests and workflows on Python 3.12.

Bumps [python](https://github.com/python/cpython) from 3.11.4 to 3.12.0b4.
  - [Release notes](https://github.com/python/cpython/releases/tag/v3.12.0b4)
  - [Changelog](https://docs.python.org/3.12/whatsnew/3.12.html)
  - [Commits](python/cpython@v3.11.4...v3.12.0b4)

.github/workflows/ci-tests.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.11"]
+        python-version: ["3.11", "3.12"]
         os: [ubuntu-22.04]
 
     steps:
@@ -33,6 +33,7 @@ jobs:
         uses: actions/setup-python@61a6322f88396a6271a6ee3565807d608ecaddd1 # v4.7.0
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
 
       # Install poetry package manager and dependencies from poetry.lock
       - name: Install Poetry python dependencies

pyproject.toml

@@ -15,6 +15,7 @@ classifiers = [
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
 ]
 
 [tool.poetry.dependencies]