Include docker-compose files into script which updates grafana versions

[Ukochka]

When run update-grafana-version script it checks package.json and package-lock.json files, but also it should update docker-compose files with grafana versions

[tolzhabayev]

As discussed in the weekly, we should adjust the script to do the following:

• Update the part that updates the dependencies into looping over examples and using npx @grafana/create-plugin@latest update
• Check if we also update docker-compose file if not keep the section as it is for now until we find a way to do it properly in the create-plugin update command
• Once the script is working with the new command create a github action workflow to do the updates on a schedule (exact schedule to be defined - we can start monthly)
• The github action workflow should auto merge if all tests are green

@Ukochka fyi