Unit and Ubuntu update

[tobiasge]

Related Issue: -

New Behavior

• Use newest version of software

Contrast to Current Behavior

Discussion: Benefits and Drawbacks

• Keeps the image current

Changes to the Wiki

• None

Proposed Release Note Entry

• Updated Nginx Unit to 1.32 and Ubuntu to 23.10

Double Check

• [x] I have read the comments and followed the PR template.
• [x] I have explained my PR according to the information in the comments.
• [x] My PR targets the develop branch.