upgrade from node 12 to 16 to re-enable automatic build container images

[alaznem]

Also looks like we need to upgrade from node 12 to 16 for GH actions:

Build and push container image
Node.js 12 actions are deprecated. Please update the following actions to use Node.js 16: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9, docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38, docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/.

Originally posted by @antonleviathan in https://github.com/Cameri/nostream/issues/180#issuecomment-1426812229

[alaznem]

:money_with_wings: I asked for a RFQ/RFP in the downsteam CapRover repository to add nostream as a one-click-app there and slack users told me that automatic build of container images is a prerequisite for building a one-click-app script for nostream, therefore:

:exclamation: I ask here for the same: Is anyone willing to dedicate her keyboard time to this issue and after closing the upgrade to node 16 put their attention to https://github.com/Cameri/nostream/issues/180?

Since I'm in bitcoin land here, I fear asking for an old world quote/proposal and ~hope~ expect someone is willing to agree on an V4V (value 4 value) contract with me. Boundaries can be worked out by us prior to starting the work, if needed.

PV :people_hugging: