Always pop allow_unsafe_werkzeug from kwargs

[zakx]

Running a (non-production) Flask-SocketIO app in an environment without a real shell requires to pass allow_unsafe_werkzeug=True into socketio.run(). However, adding this option results in an error when run with a real shell (e.g. for development purposes), as the option is passed to app.run() which then complains about it:

Traceback (most recent call last):
  File "dev/app.py", line 48, in <module>
    socketio.run(
  File "dev/.venv/lib/python3.10/site-packages/flask_socketio/__init__.py", line 649, in run
    app.run(host=host, port=port, threaded=True,
  File "dev/.venv/lib/python3.10/site-packages/flask/app.py", line 1188, in run
    run_simple(t.cast(str, host), port, self, **options)
TypeError: run_simple() got an unexpected keyword argument 'allow_unsafe_werkzeug'

There is a simple workaround for now (sys.stdin = False), but I'd rather fix this here by always popping the option off kwargs.

[codecov-commenter]

Codecov Report

Merging #1877 (f8fc386) into main (85fc1ee) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1877   +/-   ##
=======================================
  Coverage   81.06%   81.06%           
=======================================
  Files           3        3           
  Lines         375      375           
  Branches       73       73           
=======================================
  Hits          304      304           
  Misses         52       52           
  Partials       19       19           

Impacted Files	Coverage Δ
src/flask_socketio/__init__.py	77.51% <ø> (ø)

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[zakx]

Fixed the linting issue