[Core] Prep release (Azure#39970)

Signed-off-by: Paul Van Eck <paulvaneck@microsoft.com>

Author: pvaneck

sdk/core/azure-core/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 1.33.0 (Unreleased)
+## 1.33.0 (2025-03-10)
 
 ### Features Added
 
@@ -27,8 +27,6 @@
     - "x-ms-client-request-id" is now "az.client_request_id"
     - "x-ms-request-id" is now "az.service_request_id"
 
-### Bugs Fixed
-
 ### Other Changes
 
 - Added `opentelemetry-api` as an optional dependency for tracing. This can be installed with `pip install azure-core[tracing]`. #39563

sdk/core/azure-core/setup.py

@@ -54,6 +54,7 @@
         "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,