Update supported python versions

Author: SpencerOfwiti

src/nginx/setup.py

@@ -29,6 +29,13 @@
     'Programming Language :: Python :: 3.6',
     'Programming Language :: Python :: 3.7',
     'Programming Language :: Python :: 3.8',
+    'Programming Language :: Python :: 3.9',
+    'Programming Language :: Python :: 3.10',
+    'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
+    'Programming Language :: Python :: 3.13',
+    'Programming Language :: Python :: 3.14',
+    'Programming Language :: Python :: 3.15',
     'License :: OSI Approved :: MIT License',
 ]