This commit updates the GitHub Actions workflow to ensure that images built with a hardware suffix are tagged as 'latest'. Additionally, it modifies the README.md to enhance the documentation around the Docker container deployment, including basic and GPU-accelerated deployment instructions.
Updated various GitHub Actions used in the CI workflows (build.yml, gh-pages.yml, test.yml) to their latest major versions. This includes actions for checking out code, setting up Go, uploading artifacts, configuring Docker, and deploying to GitHub Pages. The update is part of routine maintenance to ensure compatibility with the latest features and improvements provided by these actions.