BigBadBassMan

provide official docker images for box

3

## Feature Request Since more and more projects adopt docker (for CI/CD or simply for build purposes), an official box docker-image (or collection of images for different supported PHP versions),...

fixes #693 by using a github action to create a docker image from the released artifact. New secrets needed on the repo: DOCKERHUB_USERNAME : username for dockerhub, also used as...

Updated from official Plugin skeleton and allowed PHP8.0 in addition to 7.x

Fixes #1329, adds PHP8.3 flavours and cleans up the images pushed to ghcr