Add py3.13 (#39661)

Author: xiangyan99

sdk/identity/azure-identity/setup.py

@@ -47,6 +47,7 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "License :: OSI Approved :: MIT License",
     ],
     zip_safe=False,