Dagger 0.3.10: New pipeline API, support for container metadata, and more

Dagger 0.3.10 has introduced a new pipeline API that enables developers and operators to programmatically group related operations together for status reporting and visualization purposes, improving visibility of specific operations or events. The release also includes support for container metadata management via the Dockerfile LABEL instruction, allowing developers to add and manage labels for containers. Additionally, all SDKs now have an improved Build() method that allows users to build a particular target in a multi-stage Dockerfile, and the Python SDK provides more verbose error messages when a Dagger session connection cannot be established. The release also includes new documentation and tutorials, including an end-to-end tutorial on using Dagger with GitHub Actions.