Upgrades to Ruby and Rails

This work encapsulates a concerted effort to modernize the Altmetric tech stack, addressing dependencies, language versions, and frameworks across multiple parts of the project. The focus on upgrading both Ruby and Rails across various components is part of a move towards consistency, improved performance, and leveraging the latest features available in these technologies. Additionally, the upgrade of React underlines our commitment to maintaining a robust, efficient, and up-to-date development and deployment pipeline, making for a better product for our users.