provide multi-platform docker images

git checkout "${VERSION}"

git submodule update --init

docker build --no-cache -t dbris:${VERSION} .

docker build -t dbris:latest .

docker tag dbris:${VERSION} derfnull/dbris:${VERSION}

docker tag dbris:latest derfnull/dbris:latest

docker push derfnull/dbris:${VERSION}

docker push derfnull/dbris:latest

docker buildx build --push --no-cache --platform linux/amd64,linux/arm64 --tag derfnull/dbris:${VERSION} --tag derfnull/dbris:latest --build-arg=dbf_version=${VERSION} .