Add GitHub Action for Automated Unit Tests

[moisb7]

This Pull Request adds a GitHub Actions configuration to automatically run unit tests on each push to the branch. The action performs the following steps:

1. Sets up the Python 3.11.5 environment.
2. Installs dependencies defined in requirements.txt.
3. Runs unit tests using Pytest.

This ensures that tests are automatically executed and verified before merging any changes into the main branch.

[CLAassistant]

All committers have signed the CLA.

[moisb7]

its ok.