Build docker image for multiple platforms (#1101)

Signed-off-by: Michael Wagner <m.wagner@x-ion.de>

Author: mitch000001

.github/workflows/build-docker.yml

@@ -45,6 +45,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: "./Tests/"
+          platforms: linux/amd64,linux/arm64
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}