Upgrade minimum twisted version to higher than 22.8.0

[johannaengland]

After dropping support for Python 3.7 (#2790) we are no longer bound to the twisted version 22.8.0. In #2901 we already allow twisted to be a higher version. But we might want to consider setting the minimum version even higher that a at least two years old version.
This might also give the opportunity to simplify code that was introduced in #2796.