Test with Python 3.13 beta (#21)

.github/workflows/test-package.yml

@@ -32,11 +32,12 @@ jobs:
           - '3.10'
           - '3.11'
           - '3.12'
+          - '3.13-dev'
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies

tox.ini

@@ -13,7 +13,7 @@
 # Tox virtual environment manager for testing and quality assurance
 
 [tox]
-envlist = py38, py39, py310, py311, py312, linting, docs
+envlist = py38, py39, py310, py311, py312, py313, linting, docs
 isolated_build = True
 # Developers may not have all Python versions
 skip_missing_interpreters = true
@@ -25,7 +25,8 @@ python =
   3.9: py39
   3.10: py310
   3.11: py311
-  3.12: py312, linting, docs
+  3.12: py312
+  3.13: py313, linting, docs
 
 [testenv]
 # Base test environment