fix(backend): fixed Dockerfile (kubeflow#11841)

Signed-off-by: Helber Belmiro <[email protected]>

Author: hbelmiro

backend/Dockerfile.visualization

@@ -25,7 +25,7 @@ RUN apt-get update \
   && curl https://dl.google.com/dl/cloudsdk/release/google-cloud-sdk.tar.gz > /tmp/google-cloud-sdk.tar.gz \
   && mkdir -p /usr/local/gcloud \
   && tar -C /usr/local/gcloud -xf /tmp/google-cloud-sdk.tar.gz \
-  && /usr/local/gcloud/google-cloud-sdk/install.sh \
+  && /usr/local/gcloud/google-cloud-sdk/install.sh
 
 ENV PATH $PATH:/usr/local/gcloud/google-cloud-sdk/bin