Incompatible with werkzeug 3

[honzajavorek]

Werkzeug 3 breaks Frozen-Flask, which transitively breaks elsa. It's because werkzeug has removed a .charset attribute somewhere, but Frozen-Flask relies on it. Frozen-Flask is without maintainers AFAIK, but elsa could maybe monkey-patch as a hotfix or something. See Frozen-Flask/Frozen-Flask#129

[honzajavorek]

My hotfix of pyvec.org here: https://github.com/pyvec/pyvec.org/blob/95175bf9ac854b321ed19727892352bf4e6f2c56/Pipfile#L24