`werkzeug.urls.url_decode` is deprecated and cannot be used in werkzeug 3

[liwii]

Describe the bug
In this line, from werkzeug.urls import url_decode fails with latest werkzeug==3.0.0.

flask-login/src/flask_login/utils.py

Line 14 in 31e20a3

from werkzeug.urls import url_decode

This is because werkzeug.urls.url_decode is already deprecated and removed from werkzeug==3.0.
(Ref: https://github.com/pallets/werkzeug/pull/2768/files#diff-342c3ac7878fc8165fb66b641c3a05ae0b4e5da5c9273fd00db272d61422bb89L3)

Their suggestion is to use urllib.parse.parse_qs instead.

To Reproduce
Import flask_login with werkzeug==3.0.0

[davidism]

Duplicate of #744, fixed by #746. A volunteer maintainer will work on making a release when they have time available.