ci(nodejs): add node 24 to test matrix

[Fdawgs]

What this does:

Adds next LTS, Node 24, to test matrix in CI job.

Related issues:

N/A

Pre/Post merge checklist:

• Update change log

[dhensby]

I think we have to remove the ubuntu-20.24 builds now, as those images have been retired.

I was going to do that soon, just haven't got around to it

[Fdawgs]

I think we have to remove the ubuntu-20.24 builds now, as those images have been retired.

I was going to do that soon, just haven't got around to it

I could do that here, is it better to just target 24.04 or swap 20.04 out for 22.04?