Publish Docker images

Bump docker/build-push-action from 6.9.0 to 6.15.0 #309

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
build (3.9)	6m 26s
build (3.12)	13m 45s
build (3.12)	13m 2s
build (3.9)	6m 37s
	39m 50s