Python dependency: Update flask-socketio requirement from ==5.3.* to ==5.4.* in /web/regression

[dependabot]

Updates the requirements on flask-socketio to permit the latest version.

Release notes

Sourced from flask-socketio's releases.

Release 5.4.1

See CHANGES.md for release notes.

Changelog

Sourced from flask-socketio's changelog.

Flask-SocketIO change log

Release 5.4.1 - 2024-10-01

• Removed a debugging statement (commit)

Release 5.4.0 - 2024-09-30

• Support catch-all events with socketio.on('*') #2095 (commit)

Release 5.3.7 - 2024-09-02

• Prevent crash when client sends empty event (commit)
• Handle events with catch-all namespace #2061 (commit)
• Add unit test for background tasks (commit)
• Drop Python 3.7, add Python 3.12, upgrade to pypy 3.10 (commit)

Release 5.3.6 - 2023-09-05

• Fixes in the test client to support recent changes in Socket.IO dependencies #2006 (commit)

Release 5.3.5 - 2023-07-26

• Prevent allow_unsafe_werkzeug option from being passed to web servers #2001 (commit)

Release 5.3.4 - 2023-05-03

• Fixed cookie handling in Test Client for Flask >= 2.3 #1982 (commit)
• Correctly handle ConnectionRefusedError in connect handler #1959 (commit)
• More secure nginx configuration examples #1966 (commit) (thanks Lorenzo Leonardini!)

Release 5.3.3 - 2023-03-17

• Invalid arguments passed in call() function #1953 (commit)

Release 5.3.2 - 2022-11-20

• Deliver callbacks from different namespaces #1909 (commit)
• Fix documentation typos #1881 (commit) (thanks Tim Gates!)

Release 5.3.1 - 2022-09-11

• Always pop allow_unsafe_werkzeug option from kwargs #1877 (commit) (thanks zakx!)

Release 5.3.0 - 2022-08-23

• Add call() function to emit to the client and wait for the callback response #1830 (commit)
• Manage each test client's connection state independently #1829 (commit)
• Support new Flask 2.2 session structure #1856 (commit)
• Do not allow Werkzeug to be used in production by default #1814 (commit)

... (truncated)

Commits

• ee659d5 Release 5.4.1
• 6841bd5 remove a debugging statement
• 16fea7a Version 5.4.1.dev0
• 5db5f59 Release 5.4.0
• 45990f6 Support catch all events (Fixes #2095)
• c4f0218 Version 5.3.8.dev0
• 56d8da6 Release 5.3.7
• 03512f2 prevent crash when client sends empty event
• 9aea705 Bump zipp from 3.8.1 to 3.19.1 in /example (#2075) #nolog
• f4ebcc7 Handle events with catch-all namespace (Fixes #2061)
• Additional commits viewable in compare view

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