Create an update script that will update all containers in the docker stack to their newest versions

[rin-skylight]

Alongside the initial configuration script, IT admins will need an update shell script that allows for quick updating of existing containers to new versions, along with a reset of the docker stack.

Acceptance Criteria:

• determine whether to overwrite existing compose file or update a version string somewhere that the compose file takes in.
• Script should fetch most recent release version from eCR Viewer/Query Connector repos.
• If the version matches, indicate that no upgrade is needed and exit gracefully.
• If upgrade available, back up existing config (compose file, etc.)
• Consider adding functionality to automatically restore the backup if there is a failure
• Reset the docker stack by using docker compose to bring the existing stack down and back up again.