Add Docker HEALTHCHECK to all services using the grpc_health_probe executable

[mic-max]

Fixes #89

Error building the docker project

Changes

• Includes the gRPC health checking binary to the repository
• Each service will now copy and use this binary as part of the Docker HEALTHCHECK
• Adds instructions to inspect health of services correctly showing the change works and shows healthy and unhealthy services

To be done

• Test and add healtchecking endpoint to all services (not all services currently implement this or not correctly)

[julianocosta89]

The PR looks fine, I'd just check out the discussion going on at #89 to decide if the grpc_health_probe will be commited in the repo or downloaded in the Dockerfile.

[mic-max]

Converting to draft while I rework this to not include the binary and instead have instructions for users to download the probe to the correct folder and also add a step to the CIs to download the executable.

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 7 days.