fix: Add trove classifier for Python 3.13

setup.py

diff --git a/setup.py b/setup.py
index 284574a..42a0e68 100644
--- a/setup.py
+++ b/setup.py
@@ -82,6 +82,7 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: Apache Software License",