ci: bump node to v24

[xiashtra]

• bump setup-node to v6
• bump node to v24

Hopefully resolves issues with the create_npm_package job.

[valarnin]

Should probably test that all of our actions work properly with node v24 before merging this? I can't imagine there's any sort of breakage but just in case...

[xiashtra]

Should probably test that all of our actions work properly with node v24 before merging this? I can't imagine there's any sort of breakage but just in case...

I've had v24 installed locally as the latest LTS for a while without issues, for what it's worth.

[valarnin]

The PR itself fired most of the actions and they seem fine, so I think this is fine to merge.

[Bing-su]

Running the npm install command on node 24 updates the package-lock.json file. It would be good to include these changes in the next related PR.

[xiashtra]

Running the npm install command on node 24 updates the package-lock.json file. It would be good to include these changes in the next related PR.

I don't have any changes from running that locally with node v24. Regardless, we are overdue to go through and update our dependencies. @valarnin started working on some of them in #512, but there were some issues with webpack that needed to be resolved.