Add GitHub action to run tests for each PR

[ChillarAnand]

Is your feature request related to a problem? Please describe.
Having a CI pipeline makes sure that all tests are run on every PR.

Describe the solution you'd like
Create a GH action to run tests.

[Ayush41]

I would like to work on this.
Planning to add a GitHub Actions workflow to run the test suite on every PR and push.
Will open a PR once I have a working workflow.