use node 16

[jburel]

This PR upgrades the node version.
This has been tested in the upgraded CI.

[will-moore]

Is there a reason to pick node v16 specifically?
Looks like v18 is the latest LTS: https://nodejs.org/en/download/

[jburel]

The reason I picked 16 is to match https://github.com/ome/omero-figure/blob/master/.omeroci/app-deps
We could bump to 18 in figure and see. I have no objection to it

[will-moore]

Ah - I see https://merge-ci.openmicroscopy.org/jenkins/job/OMERO-web/1533/console just failed with my figure PR: ome/omero-figure#477

18:21:24 /tmp/pip-install-k93fdtkn/omero-figure_f3c59f5784fe4defb69418a41926d86f/node_modules/vite/bin/vite.js:2
18:21:24 import { performance } from 'node:perf_hooks'
18:21:24 ^
18:21:24 18:21:24 SyntaxError: Unexpected token {

I have been developing with this version locally:

$ node --version
v16.14.0
$ npm --version
8.13.1

[will-moore]

I've reverted that figure PR to "draft" (until node is updated) so as not to break the omero-web job.