Add CI/CD pipeline

[netoax]

In order to improve the development and testing process, it would be nice to have a continuous integration and deployment pipeline that can ensure the project's code quality and automate the deployment based on new integrated features.

There are widely tools used by the community that can be suitable for our needs:

• CircleCI
• TravisCI
• Jenkins

Choosing the appropriate tool is one of the tasks associated with this issue.

Possible pipeline:

1. New feature
2. Run tests
3. Build docker images
4. Push to ECS registry
5. Deploy to ECS
6. Notify the team via slack