fix: Add missing 3.14 PyPI classifier.

Author: JYOuyang

pyproject.toml

@@ -27,6 +27,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Programming Language :: Python :: Implementation :: PyPy",
     "Intended Audience :: Developers",
     "Intended Audience :: System Administrators",