[stubsabot] Bump Flask-SocketIO to 5.5.* (python#13288)

Release: https://pypi.org/pypi/Flask-SocketIO/5.5.0
Homepage: https://github.com/miguelgrinberg/flask-socketio
Repository: https://github.com/miguelgrinberg/flask-socketio
Typeshed stubs: https://github.com/python/typeshed/tree/main/stubs/Flask-SocketIO
Diff: miguelgrinberg/Flask-SocketIO@v5.4.1...v5.5.0

Stubsabot analysis of the diff between the two releases:
 - Total lines of Python code added: 28.
 - Total lines of Python code deleted: 23.

stubs/Flask-SocketIO/METADATA.toml

@@ -1,3 +1,3 @@
-version = "5.4.*"
+version = "5.5.*"
 requires = ["Flask>=0.9"]
 upstream_repository = "https://github.com/miguelgrinberg/flask-socketio"