provide multi-platform docker images

test -n "${VERSION}"

git checkout main

git pull

git submodule update --init

git checkout "${VERSION}"

git submodule update --init

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

docker build -t dbris-m:latest .

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

docker tag dbris-m:latest derfnull/dbris-m:latest

docker push derfnull/dbris-m:${VERSION}

docker push derfnull/dbris-m:latest

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