Update LICENSE to AGPL-3.0

[glenn-jocher]

This pull request updates the license of the YOLOv8 project from GNU General Public License v3.0 (GPL-3.0) to GNU Affero General Public License v3.0 (AGPL-3.0).

We at Ultralytics have decided to make this change in order to better protect our intellectual property and ensure that any larger work that incorporates YOLOv8 and is provided as a service over a network will also be open-sourced under AGPL-3.0.

AGPL-3.0 is very similar to GPL-3.0, but with an additional clause to address the use of software over a network. This change ensures that if someone uses YOLOv8 as part of a larger work and provides that larger work as a service over a network (e.g., through a web application or API), they must make the source code of the larger work, including any YOLOv8 modifications, available to users of the service under the AGPL-3.0 license.

We believe that this change will promote a more collaborative environment and help drive further innovation within the YOLOv8 community.

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Introduction of GNU Affero General Public License to the project.

📊 Key Changes

• A LICENSE file was added to the project repository.
• The license is the GNU Affero General Public License (AGPL), version 3.

🎯 Purpose & Impact

• The AGPL license is chosen to ensure that all versions of the software remain free for all users.
• This license allows users & developers to copy, distribute, and modify the software, while also ensuring that modifications are shared with the community when the software operates as a network server.
• The impact is that future contributors must comply with the AGPL license requirements, ensuring that derivative works remain open and the source code is accessible to end-users.
• The license protects the freedom of the software and its community by allowing continued collaboration and sharing of improvements. 🤝🔓