Updating Packages Including The Version Of The OpenStack SDK

[XaverStiensmeier]

The new openstacksdk version brought a number of updates making a handful of changes necessary:

• keys of different openstack objects changed slightly to be more snake case conform and more informative regarding their value
• creating a volume now returns the entire object which makes getting it by id unnecessary. This broke volume deletion which is fixed in this branch
• attaching a floating ip works via a list now. The old method is deprecated and had to be replaced.

As part of this issue and evaluating changed syntax a stepping stone for #691 has been implemented, but not yet activated. The complete integration and solution of that issue will happen in its own branch.

The pyproject.toml has been simplified. In the past packages were listed that were requirements of the actual required packages. Those have been removed. A few packages had fixed versions where this is likely not necessary. Those have been eased. Now only paramiko (due to the 4.0.0 incompatability issue) and openstacksdk have fixed versions. For a perfect package version reproduction the requirements.txt or the uv.lock can be used.

Also includes a fix for #696

[XaverStiensmeier]

Marked as ready to review @jkrue