Add notifications-catalog.yaml

Author: posquit0

addons/argo-cd/download.sh

@@ -11,3 +11,5 @@ curl -Ls "$DOWNLOAD_URL/$DOWNLOAD_VERSION" -o argo-cd-$DOWNLOAD_VERSION.tar.gz
 mkdir -p $DOWNLOAD_DIRECTORY
 tar -xzf argo-cd-$DOWNLOAD_VERSION.tar.gz --include "**/manifests" --directory $DOWNLOAD_DIRECTORY --strip-components 2
 rm -f argo-cd-$DOWNLOAD_VERSION.tar.gz
+
+curl -Ls https://raw.githubusercontent.com/argoproj/argo-cd/${DOWNLOAD_VERSION}/notifications_catalog/install.yaml -o config-map.argocd-notifications-cm.yaml