add py 3.13

Author: mr-mixas

.github/workflows/tests.yml

@@ -10,6 +10,7 @@ jobs:
         - '3.7'
         - '3.8'
         - '3.9'
+        - '3.13'
         - 'pypy-3.7'
         - 'pypy-3.8'
         - 'pypy-3.9'

pyproject.toml

@@ -30,6 +30,7 @@ classifiers = [
     'Programming Language :: Python :: 3.10',
     'Programming Language :: Python :: 3.11',
     'Programming Language :: Python :: 3.12',
+    'Programming Language :: Python :: 3.13',
     'Programming Language :: Python :: Implementation :: CPython',
     'Programming Language :: Python :: Implementation :: PyPy',
     'Topic :: File Formats :: JSON',