Integrate running test cases on GitHub PR and release

[bhavya-tech]

We have test cases written in tests/ folder. Configure so that:

• All test cases should pass before merging a PR.
• Release should only be done if all the test cases pass.

This would require setting up a testing environment too:

• Install libraries on the Python3.8 environment.
• If a messaging queue needs to be running for the test case then we need to set up one too.