Fix incorrect hash of dart-docker repository
Fix incorrect hash of dart-docker repository

It was incorrectly the hash of the open PR commit, not of the landed PR.
31z4/official-images,docker-library/official-images,infosiftr/stackbrew,neo-technology/docker-official-images,31z4/official-images,infosiftr/stackbrew,31z4/official-images,docker-library/official-images,docker-library/official-images,31z4/official-images,neo-technology/docker-official-images,docker-solr/official-images,infosiftr/stackbrew,docker-solr/official-images,infosiftr/stackbrew,infosiftr/stackbrew,docker-solr/official-images,31z4/official-images,infosiftr/stackbrew,docker-library/official-images,docker-library/official-images,docker-solr/official-images,neo-technology/docker-official-images,docker-library/official-images,neo-technology/docker-official-images,31z4/official-images,31z4/official-images,neo-technology/docker-official-images,docker-library/official-images,docker-solr/official-images,neo-technology/docker-official-images,infosiftr/stackbrew,31z4/official-images,infosiftr/stackbrew,docker-solr/official-images,neo-technology/docker-official-images,31z4/official-images,docker-library/official-images,docker-solr/official-images,31z4/official-images,31z4/official-images,docker-library/official-images,infosiftr/stackbrew,neo-technology/docker-official-images,docker-solr/official-images,infosiftr/stackbrew,neo-technology/docker-official-images,neo-technology/docker-official-images,infosiftr/stackbrew,docker-solr/official-images,infosiftr/stackbrew,docker-solr/official-images,docker-solr/official-images,docker-solr/official-images,neo-technology/docker-official-images,31z4/official-images,31z4/official-images,docker-solr/official-images,docker-library/official-images,docker-solr/official-images,docker-library/official-images,docker-library/official-images,infosiftr/stackbrew,docker-library/official-images,docker-library/official-images,31z4/official-images,neo-technology/docker-official-images,neo-technology/docker-official-images,infosiftr/stackbrew,neo-technology/docker-official-images