CI : job fails in step build-and-push-alpine

[ghusta]

docker buildx build --push ... fails for step build-and-push-alpine

Log :

ERROR: failed to solve: server message: insufficient_scope: authorization failed
Error: buildx failed with: ERROR: failed to solve: server message: insufficient_scope: authorization failed

---

References :

• https://docs.docker.com/engine/reference/commandline/buildx_build/
• https://github.com/docker/build-push-action/issues/223