feat: python 3.13 (#831)

Author: lukasvinclav

.github/workflows/test.yml

@@ -23,6 +23,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13"
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5

pyproject.toml

@@ -16,6 +16,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Operating System :: OS Independent",
     "Environment :: Web Environment",
     "Intended Audience :: Developers",
@@ -89,7 +90,7 @@ legacy_tox_ini = """
     [tox]
     isolated_build = true
     envlist =
-        python{38,39,310,311,312}-django{32,41,42,50,51}
+        python{38,39,310,311,312,313}-django{32,41,42,50,51}
 
     [testenv]
     skip_install = true