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Description
Is your feature request related to a problem? Please describe.
When building multi-arch image with buildx (docker/build-push-action@v2), builds complete much quicker than with redhat-actions/buildah-build@v2.
It seems to me that buildx action performs builds in parallel and this saving significant time from the builds. As an example, my multi-arch build with buildx takes 41 minutes and with buildah - 1h36m
Describe the solution you'd like
build images in parallel and provide a configuration option to run in sequence when desired.