Update dependencies and use ESM

[koshea]

Updates dependencies including to latest Node LTS. Latest version of yaml-import now only supports ESM, so also migrates to using import syntax.

Adjusts the contributing document to reference the new name of the vsce CLI package.

[bpruitt-goddard]

Looks good aside from the CI issue. I was able to build and get all tests passing locally 👍

[bpruitt-goddard]

Sorry can you also rebase with master? It looks like its failing now due to merge conflicts in package.json and package-lock

[koshea]

Sorry can you also rebase with master? It looks like its failing now due to merge conflicts in package.json and package-lock

No problem, all set.

[bpruitt-goddard]

Sorry, can you make one last check to pass CI: can you update package.lock based on the CI run?

npm error code EUSAGE
npm error
npm error npm ci can only install packages when your package.json and package-lock.json or npm-shrinkwrap.json are in sync. > Please update your lock file with npm install before continuing.
npm error
npm error Missing: prettier@3.3.3 from lock file