Update Dockerfile

[Kroffie]

Fix old nodesource.com repo to new

[Kroffie]

This should fix the build failing (: @ThijsEgberts

[marijnvanderhorst]

Please note that the https://deb.nodesource.com/node_18.x URL pointed (and still seems to point) to a debian package repository, whereas the proposed https://deb.nodesource.com/setup_18.x URL seems to point to a bash script instead.

Looking at the bash script, it seems to take care of configuring the DEB package repository, so the manual repo configuration here should be replaced by executing the script instead, I'd think.

The Debian 12 distro comes with Node.js v18 included in the default package repository I believe. Hence, alternatively, we could update the docker base image to php:8.2-fpm-bookworm and install nodejs from the default debian repository (instead of the nodesource.com repository).

https://packages.debian.org/bookworm/nodejs