add classifiers (#33872)

Author: l0lawrence

sdk/eventgrid/azure-eventgrid/setup.py

@@ -54,6 +54,8 @@
         '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',
         'License :: OSI Approved :: MIT License',
     ],
     python_requires=">=3.8",