add uv instructions

[joamatab]

Summary by Sourcery

Documentation:

• Update installation instructions for contributors to recommend using 'uv' for setting up the development environment.

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Reviewer's Guide by Sourcery

This PR updates the README.md file to change the installation instructions for contributors, replacing the previous git-based workflow with UV (a new Python package installer and environment manager) installation instructions.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Updated contributor installation instructions to use UV package manager	Renamed 'Installation for developers' section to 'Installation for contributors' Added UV installation commands for macOS/Linux and Windows Replaced pip-based installation with UV commands Removed git clone and pre-commit setup instructions	README.md

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