Experimenting with container signing and adding database to docker-co…

[gkeesh7]

Types of Change

• [ ] Bug Fix
• [x] New Feature
• [ ] Refactoring
• [ ] Package or module upgrade
• [ ] Tech Debt (e.g improve performance, fix security issue etc)
• [ ] Breaking Change (fix or feature that would cause existing functionality to not work as expected)

Description

Adding container signing to github actions to sign container images of URL shortner.

CheckList

• [x] I've self-reviewed the changes.
• [ ] I've tested locally.
• [ ] I've updated Unit Tests.
• [ ] I've updated End-to-End Tests.
• [ ] I've updated Integration Tests.
• [ ] I've updated the API documentation.