ci: fix image version replacement

canary tag is no more used in the
snapshotter yaml and latest version are
used, instead of searching for tag check
for the image name and do sed to replace
the required tag only.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

scripts/install-snapshot.sh

@@ -71,7 +71,7 @@ function create_or_delete_resource() {
     curl -o "${temp_snap_controller}" "${SNAPSHOT_CONTROLLER}"
     sed -i "s/namespace: kube-system/namespace: ${namespace}/g" "${temp_rbac}"
     sed -i "s/namespace: kube-system/namespace: ${namespace}/g" "${temp_snap_controller}"
-    sed -i "s/canary/${SNAPSHOT_VERSION}/g" "${temp_snap_controller}"
+    sed -i -E "s/(image: registry\.k8s\.io\/sig-storage\/snapshot-controller:).*$/\1$SNAPSHOT_VERSION/g" "${temp_snap_controller}"
 
     if [ "${operation}" == "create" ]; then
         # Argument to add/update