feat: add classifiers for free threading support in Python

Author: techouse

pyproject.toml

@@ -35,6 +35,8 @@ classifiers = [
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
+    "Programming Language :: Python :: Free Threading",
+    "Programming Language :: Python :: Free Threading :: 3 - Stable",
     "Topic :: Internet :: WWW/HTTP",
     "Topic :: Internet :: WWW/HTTP :: Dynamic Content :: CGI Tools/Libraries",
     "Topic :: Software Development :: Libraries",