Add semver tag toe Dockerfile

Signed-off-by: Beat Buesser <[email protected]>

Author: Beat Buesser

.github/workflows/dockerhub.yml

@@ -34,6 +34,8 @@ jobs:
         uses: docker/metadata-action@69f6fc9d46f2f8bf0d5491e4aabe0bb8c6a4678a
         with:
           images: adversarialrobustnesstoolbox/releases
+          tags: |
+            type=semver,pattern={{version}}
 
       - name: Build and push Docker image
         uses: docker/build-push-action@c84f38281176d4c9cdb1626ffafcd6b3911b5d94