Seems that issue is in the URL. The Dockerfile uses /edx/ path which has no tags while the correct one is /openedx.
This one has tags: GitHub - openedx/frontend-app-ecommerce: Open edX micro-frontend application for managing e-commerce information.
This one has not: GitHub - edx/frontend-app-ecommerce: Open edX micro-frontend application for managing e-commerce information.
And URLs in Dockerfiles are the one which has no tags (/edx/).