Summary by Sourcery

Add a new GitHub Actions workflow (docker.yml) to automate building, pushing, and signing Docker images via Buildx, metadata extraction, and cosign integration

New Features:

• Introduce a Docker CI workflow triggered on schedule, push to master, and semantic version tags, as well as on pull requests
• Build and push multi-platform Docker images to GHCR using Buildx with dynamic tagging
• Integrate cosign to sign published Docker images using Sigstore identity tokens

Enhancements:

• Set up Docker metadata action for tag and label generation
• Enable caching strategies for faster builds using GitHub Actions

CI:

• Add .github/workflows/docker.yml to define the Docker build and publish pipeline

Chores:

• Configure environment variables for registry (GHCR) and image naming based on the repository