docker-image: ignore DL3007

Using latest is good enough for us, and in case of actual issues we can
still pin to a specific release. This makes it easier to keep all images
up-to-date rather then having to change the base image version on each
repository.
1 job for master in 35 seconds
Status Job ID Name Coverage
  Verify
passed #34982
docker-alpine
lint

00:00:35