feat(ci): Add release workflow

[x42en]

This pull request introduces a new GitHub Actions workflow to automate building and publishing Docker images when a release is published. The workflow handles Docker image tagging, authentication with GitHub Container Registry, and leverages caching for efficient builds.

Docker image build and release automation:

• Adds a .github/workflows/release.yml workflow that triggers on release publication to build and push Docker images to GitHub Container Registry using semver-based and latest tags.
• Configures Docker Buildx, authentication, and metadata extraction for robust and repeatable image builds.
• Implements build caching to speed up subsequent Docker builds.