.github: add extra tags to docker image

Author: hakamine

.github/workflows/push-images.yml

@@ -22,4 +22,4 @@ jobs:
           load: true
           file: ./Dockerfile
           target: "archivematica-storage-service"
-          tags: artefactual/archivematica-storage-service:latest
+          tags: hakamine/archivematica-storage-service:latest,hakamine/archivematica-storage-service:${{ env.GITHUB_SHA }},hakamine/archivematica-storage-service:${{ env.GITHUB_REF_NAME }}