Use Docker github action when building and pushing to ecr

[Aveline-art]

Overview

As a developer, let's use well-maintained technologies. For this ticket, let's use well maintained github actions rather than whatever we are using right now

Action Items

• Use docker build and push github actions when deploying to AWS
  • We should especially take advantage of the action's caching options to reduce our build time
  • We should selectively disable the cache when our dockerfile changes to prevent the cache from improperly cacheing an erroneous layer

Resources/Instructions

Resources
docker/build-push-action
GitHub Actions cache

[kcoronel]

Ask Dev team - what is relevant importance of this? Where are we with this issue?