update github actions & build for both amd64 & arm64

[stynoo]

The following was done:

• bump GitHub action versions to remediate all warnings & annotations
• bump python container versions to 3.12 - this required some changes for setuptools
• build containers for both amd64 & arm64
  • strikes one item of the wishlist in Docker wishlist #133
  • closes docker support for ARM? #15 with the caveat that only arm64 is supported and not the older 32 bit versions (possible, but way longer build times)
  • prereq for Any one wrapped this as a Home Assistant Add-On? #174 as (to my knowledge) a lot of home-assistant installs are running on Raspberry Pi

Please verify as this is the first time I am using GitHub Actions.
When reading up on setuptools it seems that using setup.py is no longer advised, this will be another rabbit hole....

[stynoo]

I am running this now for a week on ARM (rpi5). The container images can be found here if you want to test it yourself.

[longstone]

Thanks for the update!