MNTOR-2247: CICD

[mansaj]

References:

Jira: MNTOR-2247

Description

First steps of CICD:

• Eliminate the need to depend on CircleCI (took out the linting etc)
• Add continuous deployment that builds docker images and push to dockerhub whenever a push on main happens.

Screenshot (if applicable)

Not applicable.

How to test

Checklist (Definition of Done)

• Commits in this PR are minimal and have descriptive commit messages.
• I've added or updated the relevant sections in readme and/or code comments
• Product Owner accepted the User Story (demo of functionality completed) or waived the privilege.
• All acceptance criteria are met.
• Jira ticket has been updated (if needed) to match changes made during the development process.
• Jira ticket has been updated (if needed) with suggestions for QA when this PR is deployed to stage.

[mansaj]

@rhelmer took out the demo code