chore: build and push docker image to registry (#938)

* chore: update doc
chore: added github action on building docker image

* chore: remove set-env from gha

* chore: fix typo in gha

* bugfix: gha typo

* bugfix: checkout repo first to allow rev parse

* bugfix: chown to low privilege user

* bugfix: typo in chown dir name

* bugfix: use double quotes for token & username