chore: Update NPM packages

[rmunn]

Is your feature request related to a problem? Please describe.
We haven't updated our NPM packages in a long time. Let's update them and see if the site still runs.

Describe the solution you'd like
Run npm up and commit the resulting package-lock.json file.

Describe alternatives you've considered
Leave packages as-is and merge some of the dependabot PRs that have been sitting around.

Additional context
Might base this PR on top of the bump to Node 22, so that we won't ever hit a "your Node version is too old" error from a modern package.