chore: Use newer docker images
This bumps the node docker image version for building the website.
Furthermore we switch to the smaller, stable nginx alpine image and update the packages inside it.
Closes #493
Edited by Lukas 'ai-pi' Eipert
This bumps the node docker image version for building the website.
Furthermore we switch to the smaller, stable nginx alpine image and update the packages inside it.
Closes #493