Update Dockerfile

Dockerfile

@@ -1,17 +1,3 @@
-FROM google/cloud-sdk:alpine
-
-LABEL "com.github.actions.name"="Submit Argo Workflows to GKE"
-LABEL "com.github.actions.description"="Trigger Argo (https://argoproj.github.io/) workflows That run on Google Kubernetes Engine (GKE) from GitHub"
-LABEL "com.github.actions.icon"="upload-cloud"
-LABEL "com.github.actions.color"="blue"
-LABEL "repository"="https://github.com/machine-learning-apps/gke-argo"
-LABEL "homepage"="http://github.com/actions"
-LABEL "maintainer"="Hamel Husain <hamel.husain@gmail.com>"
-
-RUN curl -sSL -o /usr/local/bin/argo https://github.com/argoproj/argo/releases/download/v2.2.1/argo-linux-amd64
-RUN chmod +x /usr/local/bin/argo
-
-ADD entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
+FROM hamelsmu/gke-argo
 
 ENTRYPOINT ["/entrypoint.sh"]