feat: update to Node 12.14.1

[aldeed]

Resolves #5770
Impact: minor
Type: feature

Changes

The project now runs on Node 12.14.1 both for development and for future production builds. This is an LTS version.

Breaking changes

This version of Node requires the new --experimental-json-modules flag to run because we import JSON files from many ES modules. This is handled already in the package.json scripts but if you are doing something non-standard, you may need to add this flag yourself.

Testing

In general you should test 3 variations:

Case 1:
docker-compose up -d with the docker-compose.override.yml file should just work

Case 2:

docker-compose down
docker build . -t test-api
docker-compose up -d mongo
docker run --env-file ./.env -p 3000:3000 --network streams.reaction.localhost -it test-api:latest

The docker build command should not have any errors and the API should start in production mode without any errors.

Case 3:
To test docker-compose up -d without the docker-compose.override.yml file, you will need to temporarily change the api.image value in docker-compose.yml to reactioncommerce/reaction:feat-aldeed-node-12.14.1

[willopez]

Tested all scenarios and they all work as intended.