feat: [BB-5664] ci scripts for building and pushing docker image

Description:

Implements CI services for creating docker images and pushing it to registry.

This is required for helm charts to fetch images and deploy them in our kubernetes cluster implemented in SE-5518.

Test instructions:

1. Monitor the CI jobs for the MR
2. Check repository container registry for pushed images after MR is merged.

Related tickets:

• Gitlab: #24 (closed)
• Jira: BB-5664

Things to remember:

• Confirm deployment details for frontend assets (tentatively implemented a ci job to deploy assets to AWS)