Go back to docker build (#11263)
Go back to docker build (#11263)

Docker build alone works with tags, where buildx did not seem to tag
properly.

Signed-off-by: Julien Pivotto <df1ed88a312a603dfee9f157a90fa8f7f195ab59@o11y.eu>

prometheus/prometheus,prometheus/prometheus,prometheus/prometheus,prometheus/prometheus,prometheus/prometheus