Remove poetry and use UV

[nickmoreton]

This pull request includes significant updates to the project, transitioning from using Poetry to UV for dependency management, updating the Python version, and making various improvements to the documentation and codebase. The most important changes are summarized below:

Dependency Management and Python Version:

• .github/workflows/test.yml: Replaced Poetry with UV for dependency management and updated the workflow to reflect these changes. Removed steps related to Poetry and added steps for setting up UV.
• .python-version: Updated the Python version to 3.11.

Documentation Updates:

• README.md: Updated the installation and usage instructions to reflect the switch from Poetry to UV. Added sections on requirements and activating the virtual environment. [1] [2]

Configuration Changes:

• pyproject.toml: Modified the configuration to use Hatchling instead of Poetry for the build system. Updated dependencies and grouped them appropriately.

Code Improvements:

• src/check_local.py: Added code to delete the requirements-frozen.txt file after processing it.
• src/main.py: Changed the local command to use a click.Path argument for better path handling.
• src/managers/repository.py: Simplified the method for getting the absolute path by directly assigning the path argument.