* refactor(docker): Combine RUN statements to reduce number of image layers
* Add --update && --no-cache to apk add command
* Combine RUN statements in first stage
* Consolidate COPY commands from BUILD_IMAGE
* Add docs & snap to .dockerignore
* Revert first COPY statement in 2nd stage
* Write committag.json in first stage & only do one COPY
Also pin base image Alpine version, and add Docker & GitHub Actions update monitoring via Dependabot
* Bump node to 14.15.4
* Change base image to node:14.15-alpine and remove Dependabot Docker monitoring
* Changes in response to PR comments
* Remove ARG/ENV statements from second build stage
