Fix ICLA check

[lkiesow]

This fixes the ICLA check by copying the relevant changes (mainly updating Ubuntu) over from the opencast/opencast repository.

[github-actions]

Hi @lkiesow Thank you for contributing to the Opencast Editor. We noticed that you have not yet filed an [Individual Contributor License Agreement](https://www.apereo.org/licensing/agreements/icla). Doing that (once) helps us to ensure that Opencast stays free for all. If you make your contribution on behalf of an institution, you might also want to file a [Corporate Contributor License Agreement](https://www.apereo.org/licensing/agreements/ccla) (giving you as individual contributor a bit more security as well). It can take a while for this bot to find out about new filings, so if you just filed one or both of the above do not worry about this message! Please let us know if you have any questions regarding the CLA.

---

He's lying!!! I do have an ICLA filed with Apereo. I promise!!! —@lkiesow

[github-actions]

This pull request is deployed at test.editor.opencast.org/1494/2024-11-19_18-05-16/ .
It might take a few minutes for it to become available.