Eberhard Beilharz 33fe775aa7 maint(developer): use docker buildx to build docker images ... This change verifies that `docker buildx` is available and then uses that for building the images. For that we apparently need the magic line at the top of the `Dockerfile`s and set the environment variable `DOCKER_BUILDKIT`. This solves a problem building docker images on Linux with an older Docker version where the heredocs didn't work.		2025-06-06 18:10:53 +02:00
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Dockerfile	maint(developer): use docker buildx to build docker images	2025-06-06 18:10:53 +02:00