We need to drop node 16 support, [as support for it is ends much earlier now, due to support for openssl 1.1.1 ending](https://nodejs.org/en/blog/announcements/nodejs16-eol).
`0.236.x` releases will continue to support Node.js 16 for another two months, and `1.x.x` releases will only support Node.js 18 for now.
* ci: start supporting node.js 18
Node.js 18 becomes the active LTS on 2022-10-25, as Node.js 16 goes into maintenance mode.
https://github.com/nodejs/Release#release-schedule
* continue using node 16 for production images
* node 16 for debian and base images as well for now
