Enable locally running CI tests

[yeoldegrove]

What this PR does / why we need it:

This enables you to run tests locally via make.
Github actions now use the same mechanism to install dependencies and lock them.

❯ make
Available targets:
  build        - Build the package
  install      - Install the package and dependencies
  install-dev  - Install the package and dev dependencies
  test         - Run tests
  format       - Format code with black
  lint         - Run linting checks
  security     - Run security checks with bandit
  docs         - Build the documentation
  clean        - Clean build artifacts and cache
  help         - Show this help message

[NotTheEvilOne]

LGTM