Automate container build and deployment (#46)

• CI: Introduce container build and deployment automation
• Delete container build scripts
• compose: Use images from GitLab Registry
• websites/duniter-website-en-v2!11 (merged)

Close #46 (closed).

scripts/build-docker-image-hasura.sh

-#!/bin/bash
-
-set -e
-
-# Get the version number from package.json
-version_tag=$(grep -oP '"version": "\K[^"]+' package.json)
-
-latest_tag="latest"
-
-docker buildx build -f Dockerfile.Hasura -t duniter-squid-hasura .
-
-# Tag specific version
-docker image tag duniter-squid-hasura:latest h30x/duniter-squid-hasura:$version_tag
-docker image push h30x/duniter-squid-hasura:$version_tag
-
-# Tag "latest"
-docker image tag duniter-squid-hasura:latest h30x/duniter-squid-hasura:$latest_tag
-docker image push h30x/duniter-squid-hasura:$latest_tag