* Fixes#768
* buildx build
* We need `setuptools_scm` to run `Makefile`
* Build `docker` container using `wheel`
* Download package distribution
* Adjust supported platforms
* Alpine only supports v6
* .
* May-be fix `lsb_release`
* Enable `multiarch` env for docker buildx
* Deprecate `DOCKER_IMAGE_TAG` which removes `write-scm-version.py` dependency. Also pass targetplatform as an argument to `container-buildx` make target
* Remove `setuptools_scm` dep for docker workflow step
* woof
* Match all target platforms to match `python-alpine` docker
* yamllint
* Use `yamllint disable rule:line-length` for `Dockerfile`
* Tag the container using `dist-version`
* Replace + with . for dev version tag
* Add `PROXYPY_CONTAINER_VERSION` step
Abhinav Singh