Add support for Ubuntu 24.04

[pascal-hofmann]

It would be great to have support for Ubuntu 24.04.

[patrick-stephens]

Sure, feel free to submit a PR for it - the main thing to do is sort the container builds then: https://github.com/fluent/fluent-bit/blob/master/packaging/distros/ubuntu/Dockerfile

The ./packaging/build.sh script should then build it and all we need to do then I think is include it in the release matrix here: https://github.com/fluent/fluent-bit/blob/master/packaging/build-config.json

And one final bit is apt repo list here: https://github.com/fluent/fluent-bit/blob/9c7a4bf20a6949eaa2f60f1d6635707d0e2e6f13/packaging/update-repos.sh#L50-L58