Merge pull request #155 from morganstanley/dependabot/pip/client-samples/python/websockets/black-25.12.0

pip-websocket: bump black from 25.11.0 to 25.12.0 in /client-samples/python/websockets

Author: willosborne

client-samples/python/websockets/dev-requirements.txt

@@ -1,3 +1,3 @@
-black==25.11.0
+black==25.12.0
 pytest==9.0.2
 websockets==16.0