Missing latest tag for Docker images

[ATrump]

Currently, the Docker images published to DockerHub do not include the latest tag. The workflow only publishes tags specific to the release version (e.g., v1.0.0) and the dev* tags.

Not having a latest tag makes it less convenient for users to pull the most recent stable release without explicitly specifying the exact version number every time.

Proposed Solution: We can easily fix this by adding a small step to the manifest job in the .github/workflows/build-docker.yaml workflow file. The step will create and push a latest manifest that points to the same amd64 and arm64 images, but only when a release tag (starting with v) is pushed.

Here is the proposed addition to the manifest job:

- name: Create and push latest manifest
        if: startsWith(needs.release.outputs.version, 'v')
        run: |
          docker manifest create ${{ secrets.DOCKERHUB_USERNAME }}/${{ matrix.image }}:latest \
            --amend ${{ secrets.DOCKERHUB_USERNAME }}/${{ matrix.image }}:${{ needs.release.outputs.version }}-amd64 \
            --amend ${{ secrets.DOCKERHUB_USERNAME }}/${{ matrix.image }}:${{ needs.release.outputs.version }}-arm64
          docker manifest push ${{ secrets.DOCKERHUB_USERNAME }}/${{ matrix.image }}:latest

Could you please add this step after the existing "Create and push manifest" step? Thank you!