[SRU] OpenStack 2023.2 stable point releases

[James Page]

[Impact]
This release sports mostly bug-fixes and we would like to make sure all of our users have access to these improvements.

The update contains the following package updates:

* cinder 23.1.0
* ironic 23.0.1
* magnum 17.0.2
* manila 17.2.0
* nova 28.1.0

[Test Case]
The following SRU process was followed:
https://wiki.ubuntu.com/OpenStack/StableReleaseUpdates

In order to avoid regression of existing consumers, the OpenStack team will run their continuous integration test against the packages that are in -proposed. A successful run of all available tests will be required before the
proposed packages can be let into -updates.

The OpenStack team will be in charge of attaching the output summary of the executed tests. The OpenStack team members will not mark ‘verification-done’ until this has happened.

[Regression Potential]
In order to mitigate the regression potential, the results of the aforementioned tests are attached to this bug.